{"id":39940,"date":"2026-04-21T16:42:38","date_gmt":"2026-04-21T09:42:38","guid":{"rendered":"https:\/\/genesisfertility.co.th\/pgt-a-embryo-screening-guide\/"},"modified":"2026-10-21T01:34:47","modified_gmt":"2026-10-20T18:34:47","slug":"pgt-a-embryo-screening-guide","status":"publish","type":"post","link":"https:\/\/genesisfertility.co.th\/en\/pgt-a-embryo-screening-guide\/","title":{"rendered":"What Is PGT-A? A Complete Guide to Embryo Chromosome Screening"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Fertility specialists often explain embryo grading this way: assessing an embryo by appearance under a microscope is similar to judging a person by outward appearance. While an embryo may look fit and healthy, its genetic health cannot be determined by appearance alone. <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/pgt-a-by-ngs\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/pgt-a-by-ngs\/\">PGT-A<\/a> provides a closer look at the embryo\u2019s chromosomes, revealing genetic information hidden within its cells. Even a beautiful, top-grade embryo may fail to implant or may result in miscarriage if it has an abnormal number of chromosomes. PGT-A can help you avoid transferring an embryo that is unlikely to implant or likely to end in miscarriage. It cannot promise a pregnancy or rule out every genetic condition. This in-depth guide explains the PGT-A process, what it can and cannot tell you, and what prospective parents can expect.<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#what-is-pgt-a-and-why-is-it-key-to-icsi-success\">What Is PGT-A, and Why Is It Key to ICSI Success?<\/a><\/li><li><a href=\"#chromosome-abnormality-rates-by-maternal-age\">Chromosome Abnormality Rates by Maternal Age<\/a><\/li><li><a href=\"#how-the-pgt-a-lab-process-works-is-it-safe-for-the-embryo\">How the PGT-A Lab Process Works &#8211; Is It Safe for the Embryo?<\/a><\/li><li><a href=\"#how-to-read-your-pgt-a-results\">How to Read Your PGT-A Results<\/a><\/li><li><a href=\"#what-pgt-a-embryo-screening-can-tell-you\">What PGT-A Embryo Screening Can Tell You<\/a><\/li><li><a href=\"#what-pgt-a-cannot-tell-you\">What PGT-A Cannot Tell You<\/a><\/li><li><a href=\"#the-key-benefits-of-pgt-a\">The Key Benefits of PGT-A<\/a><\/li><li><a href=\"#what-the-research-says-about-pgt-a-success-rates\">What the Research Says About PGT-A Success Rates<\/a><\/li><li><a href=\"#risks-and-trade-offs-to-know\">Risks and Trade-Offs to Know<\/a><\/li><li><a href=\"#pgt-a-at-genesis-fertility-center\">PGT-A at Genesis Fertility Center<\/a><\/li><li><a href=\"#who-is-suitable-for-pgt-a\">Who Is Suitable for PGT-A?<\/a><\/li><li><a href=\"#whats-new-in-embryo-testing\">What\u2019s New in Embryo Testing<\/a><\/li><li><a href=\"#questions-to-ask-before-you-choose-pgt-a\">Questions to Ask Before You Choose PGT-A<\/a><\/li><li><a href=\"#frequently-asked-questions\">Frequently Asked Questions<\/a><\/li><li><a href=\"#why-choose-genesis-fertility-center-gfc\">Why Choose Genesis Fertility Center (GFC)?<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quick Answer<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Question<\/th><th>Answer<\/th><\/tr><\/thead><tbody><tr><td>What is PGT-A?<\/td><td>Preimplantation Genetic Testing for Aneuploidies, a technology that screens embryos for chromosome number abnormalities before transfer, previously known as PGS.<\/td><\/tr><tr><td>Why does it matter for ICSI\/IVF?<\/td><td>A visually perfect embryo can still carry the wrong number of chromosomes, which can prevent implantation or lead to later miscarriage, PGT-A catches this before transfer.<\/td><\/tr><tr><td>Is the biopsy safe for the embryo?<\/td><td>Any biopsy carries some risk, which is why only 5-8 cells are removed from the trophectoderm (the layer that becomes the placenta), not from the inner cell mass that becomes the baby. A blinded study found that biopsied embryos implanted at rates similar to untested ones.<\/td><\/tr><tr><td>How long do results take?<\/td><td>Typically 14-21 days after biopsy.<\/td><\/tr><tr><td>What does PGT-A cost?<\/td><td>37,900 THB per embryo tested, you can choose to test only your best-graded embryos rather than all of them.<\/td><\/tr><tr><td>Who is it recommended for?<\/td><td>Most strongly for mothers 35+, couples with recurrent miscarriage, repeated implantation failure, or a family history of chromosome conditions.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"what-is-pgt-a-and-why-is-it-key-to-icsi-success\" class=\"wp-block-heading\">What Is PGT-A, and Why Is It Key to ICSI Success?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PGT-A (Preimplantation Genetic Testing for Aneuploidies), known in the past as PGS, is a technology that screens for chromosome number abnormalities in a human embryo before it\u2019s transferred into the uterus. It is one type of IVF genetic testing, done after embryos grow in the lab for a few days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Naturally, <a href=\"https:\/\/medlineplus.gov\/genetics\/understanding\/basics\/howmanychromosomes\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/medlineplus.gov\/genetics\/understanding\/basics\/howmanychromosomes\/\" target=\"_blank\" rel=\"noopener\">humans have 23 pairs of chromosomes (46 total)<\/a>: 22 pairs of autosomes and one pair of sex chromosomes (XX for female, XY for male). If an error occurs during egg or sperm cell division, or as the embryo\u2019s first cells divide, the resulting embryo can end up with too many or too few chromosomes, a condition called aneuploidy, which has a direct and serious impact on IVF\/ICSI success:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Extra chromosomes:<\/strong> The most well-known example is an extra copy of chromosome 21 (Trisomy 21), which causes Down syndrome. An extra chromosome 13 (Patau syndrome) or 18 (<a href=\"https:\/\/my.clevelandclinic.org\/health\/diseases\/22172-edwards-syndrome\" target=\"_blank\" rel=\"noopener\">Edwards syndrome<\/a>) typically causes severe abnormalities, often resulting in loss of the pregnancy before or shortly after birth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Missing chromosomes:<\/strong> For example, a missing X chromosome (Turner syndrome, 45 chromosomes total) results in short stature, underdeveloped ovaries, and infertility later in life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Embryos with these errors often stop growing, fail to implant, or end in miscarriage. The <a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/practice-bulletin\/articles\/2018\/11\/early-pregnancy-loss\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/practice-bulletin\/articles\/2018\/11\/early-pregnancy-loss\" target=\"_blank\" rel=\"noopener\">American College of Obstetricians and Gynecologists (ACOG)<\/a> reports that about <strong>50% of early pregnancy losses<\/strong> are due to chromosome problems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At GFC, <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/pgt-a-by-ngs\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/pgt-a-by-ngs\/\">PGT-A testing by NGS<\/a> is offered when it fits your medical history, not as a routine test for everyone.<\/p>\n\n\n\n<h3 id=\"how-pgt-a-differs-from-pgt-m-and-pgt-sr\" class=\"wp-block-heading\"><a><\/a><strong>How PGT-A Differs From PGT-M and PGT-SR<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Test<\/strong><\/td><td><strong>What it looks for<\/strong><strong><\/strong><\/td><td><strong>Who it is for<\/strong><strong><\/strong><\/td><\/tr><tr><td>PGT-A<\/td><td>Extra or missing chromosomes<\/td><td>Often people aged 35 or older, or with repeat miscarriage or failed transfers<\/td><\/tr><tr><td>PGT-M<\/td><td>One known gene change, such as thalassemia<\/td><td>Couples who carry a known gene condition<\/td><\/tr><tr><td>PGT-SR<\/td><td>Unbalanced pieces from a parent\u2019s chromosome rearrangement<\/td><td>A parent with a known translocation or inversion<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you or your partner carry a known gene condition, ask about PGT-M. PGT-A alone will not find it, even when the chromosome count looks normal.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"558\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-1024x558.webp\" alt=\"\" class=\"wp-image-35571\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-1024x558.webp 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-300x164.webp 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-768x419.webp 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-1536x837.webp 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-2048x1117.webp 2048w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-370x202.webp 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-840x458.webp 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-03-1-410x224.webp 410w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<style>\n  .gfc-cta-wrap { text-align: center; margin: 24px 0; }<br \/>\n  .gfc-cta-btn {<br \/>\n    display: inline-block;<br \/>\n    background-color: #09B78D;<br \/>\n    color: #ffffff !important;<br \/>\n    font-family: inherit;<br \/>\n    font-size: 18px;<br \/>\n    font-weight: 700;<br \/>\n    line-height: 1;<br \/>\n    letter-spacing: 0.2px;<br \/>\n    text-decoration: none !important;<br \/>\n    padding: 18px 40px;<br \/>\n    border-radius: 9999px;<br \/>\n    box-shadow: 0 6px 18px rgba(9, 183, 141, 0.30);<br \/>\n    transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease;<br \/>\n  }<br \/>\n  .gfc-cta-btn:hover,<br \/>\n  .gfc-cta-btn:focus {<br \/>\n    background-color: #078F6D;<br \/>\n    transform: translateY(-2px);<br \/>\n    box-shadow: 0 10px 24px rgba(9, 183, 141, 0.40);<br \/>\n    color: #ffffff !important;<br \/>\n  }<br \/>\n  .gfc-cta-btn:active { transform: translateY(0); }<br \/>\n  @media (max-width: 480px) {<br \/>\n    .gfc-cta-btn { display: block; width: 100%; padding: 18px 24px; font-size: 17px; }<br \/>\n  }<br \/>\n<\/style>\n\n\n\n<style>\n  .gfc-cta-wrap { text-align: center; margin: 24px 0; }\n  .gfc-cta-btn {\n    display: inline-block;\n    background-color: #09B78D;\n    color: #ffffff !important;\n    font-family: inherit;\n    font-size: 18px;\n    font-weight: 700;\n    line-height: 1;\n    letter-spacing: 0.2px;\n    text-decoration: none !important;\n    padding: 18px 40px;\n    border-radius: 9999px;\n    box-shadow: 0 6px 18px rgba(9, 183, 141, 0.30);\n    transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease;\n  }\n  .gfc-cta-btn:hover,\n  .gfc-cta-btn:focus {\n    background-color: #078F6D;\n    transform: translateY(-2px);\n    box-shadow: 0 10px 24px rgba(9, 183, 141, 0.40);\n    color: #ffffff !important;\n  }\n  .gfc-cta-btn:active { transform: translateY(0); }\n  @media (max-width: 480px) {\n    .gfc-cta-btn { display: block; width: 100%; padding: 18px 24px; font-size: 17px; }\n  }\n<\/style>\n\n<div class=\"gfc-cta-wrap\">\n  <a class=\"gfc-cta-btn\" href=\"https:\/\/genesisfertility.co.th\/en\/contact\/\">\n    Book a Consultation with GFC\n  <\/a>\n<\/div>\n\n\n\n<h2 id=\"chromosome-abnormality-rates-by-maternal-age\" class=\"wp-block-heading\">Chromosome Abnormality Rates by Maternal Age<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The single biggest factor affecting embryo chromosome abnormality is maternal age, as a woman gets older, egg cell division becomes more prone to error. Most of these errors start in the egg. Large lab data sets show the pattern clearly:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Age of the woman<\/strong><\/td><td><strong>Share of embryos with aneuploidy<\/strong><strong><\/strong><\/td><td><strong>Source<\/strong><strong><\/strong><\/td><\/tr><tr><td>Under 30<\/td><td>About 28%<\/td><td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35119550\/\" target=\"_blank\" rel=\"noopener\">Nair et al., Journal of Assisted Reproduction and Genetics (2022)<\/a><\/td><\/tr><tr><td>34<\/td><td>About 31%<\/td><td>Franasiak et al., <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24355045\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24355045\/\" target=\"_blank\" rel=\"noopener\">Fertility and Sterility (2014)<\/a><\/td><\/tr><tr><td>Over 40<\/td><td>About 67%<\/td><td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35119550\/\" target=\"_blank\" rel=\"noopener\">Nair et al., Journal of Assisted Reproduction and Genetics (2022)<\/a><\/td><\/tr><tr><td>43 and older<\/td><td>Over 80%<\/td><td>Franasiak et al., <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24355045\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/24355045\/\" target=\"_blank\" rel=\"noopener\">Fertility and Sterility (2014)<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">These are averages from large lab data sets, not your personal odds. A study in the <em>Journal of Assisted Reproduction and Genetics<\/em> also found higher rates in people with repeat miscarriage, failed IVF cycles or a past pregnancy with a chromosome condition, even after taking age into account.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What this table shows is stark: about 3 in 10 embryos at age 34 carry a chromosome error, rising to about 2 in 3 after 40 and more than 8 in 10 from age 43. This is exactly why transferring an embryo without chromosome screening becomes increasingly risky as maternal age rises, both in terms of lower implantation rates and higher miscarriage risk.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"684\" height=\"258\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Chromosome-error-rates.png\" alt=\"The chromosome error rates rise as the mother ages.\" class=\"wp-image-45516\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Chromosome-error-rates.png 684w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Chromosome-error-rates-300x113.png 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Chromosome-error-rates-369x139.png 369w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Chromosome-error-rates-408x154.png 408w\" sizes=\"(max-width: 684px) 100vw, 684px\" \/><\/figure>\n\n\n\n<h2 id=\"how-the-pgt-a-lab-process-works-is-it-safe-for-the-embryo\" class=\"wp-block-heading\">How the PGT-A Lab Process Works &#8211; Is It Safe for the Embryo?<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory.jpg\" alt=\"The PGT-A lab process is safe for embryos.\" class=\"wp-image-45523\" style=\"width:840px;height:auto\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory.jpg 1920w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-300x169.jpg 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-1024x576.jpg 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-768x432.jpg 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-1536x864.jpg 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-370x208.jpg 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-840x473.jpg 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-1290x725.jpg 1290w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-410x230.jpg 410w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-409x230.jpg 409w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-839x472.jpg 839w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Embryo-screening-in-a-laboratory-270x152.jpg 270w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Many parents worry that removing cells for testing could harm the baby, cause developmental problems, or damage the embryo. PGT-A adds a lab step to IVF or ICSI. It does not change how your eggs are collected or how the transfer feels. Here\u2019s exactly how our lab at GFC handles this process, at every careful step:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Egg collection and fertilizing:<\/strong> Eggs are collected and fertilized in the lab by IVF or ICSI.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Culture the embryo to blastocyst stage (Day 5\u20136)<\/strong> \u2013 We culture the embryo until it reaches a stage with more than 100 cells. At this point, the embryo has clearly separated into two distinct cell layers: the inner cell mass, which develops into the baby, and the trophectoderm, the outer layer that develops into the placenta.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Careful cell removal (embryo biopsy)<\/strong> \u2013 A highly experienced embryologist uses a precision laser to gently open the outer shell and remove just 5\u20138 cells from the trophectoderm layer only. The inner cell mass, the part that becomes the baby, is never touched or disturbed. Any biopsy carries some risk, which is why cells are taken only from the outer layer and only at the blastocyst stage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Vitrification (embryo freezing)<\/strong> \u2013 Immediately after the biopsy, the embryo itself is vitrified in liquid nitrogen at -196\u00b0C, preserving it in its best possible condition while results are pending. It will later be thawed for a <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/frozen-embryo-transfer-thailand\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/frozen-embryo-transfer-thailand\/\">Frozen Embryo Transfer (FET)<\/a> once you and your specialist are ready to proceed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Genetic analysis via NGS<\/strong> \u2013 The 5\u20138 biopsied cells are sent for DNA extraction and analyzed using <a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-ngs-in-pgt-a-the-technology-behind-embryo-chromosome-testing\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-ngs-in-pgt-a-the-technology-behind-embryo-chromosome-testing\/\">Next-Generation Sequencing (NGS)<\/a>, which measures how much DNA is present for each of the 23 chromosome pairs. Results are typically ready in 14\u201321 days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6.&nbsp;&nbsp;&nbsp;&nbsp; <strong>Transfer:<\/strong> A chosen embryo is thawed and placed in the uterus during a frozen embryo transfer (FET) cycle.<\/p>\n\n\n\n<div class=\"gfc-related-services\" style=\"border:1px solid #0DB68D;background:#f2fbf8;border-radius:10px;padding:16px 20px;margin:24px 0;\">\n  <p style=\"margin:0 0 8px;font-weight:700;\">Related Services at GFC<\/p>\n  <ul style=\"margin:0 0 12px;padding-left:22px;\">\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/fertility-counseling\/\" style=\"color:#078F6D;text-decoration:underline;\">Fertility Consultation for Both Partners<\/a>: assess fertility in both partners and plan treatment<\/li>\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/egg-freezing-thailand\/\" style=\"color:#078F6D;text-decoration:underline;\">Egg Freezing<\/a>: preserve healthy eggs for future pregnancy through vitrification and secure storage<\/li>\n    <li><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/ivf-icsi-bangkok\/\" style=\"color:#078F6D;text-decoration:underline;\">IVF\/ICSI<\/a>: an overview of the steps, timeline and costs<\/li>\n  <\/ul>\n  <p style=\"margin:0;\">Available at 3 branches: <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama9\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 9<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama3\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 3<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-ubon-ratchathani\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Ubon Ratchathani<\/a>, or <a href=\"https:\/\/genesisfertility.co.th\/en\/appointment\/\" style=\"color:#078F6D;text-decoration:underline;\">book online<\/a>.<\/p>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"709\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process.png\" alt=\"The IVF process is composed of 6 steps. \" class=\"wp-image-45542\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process.png 770w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process-300x276.png 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process-369x340.png 369w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process-768x707.png 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/The-IVF-process-409x377.png 409w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/figure>\n\n\n\n<h2 id=\"how-to-read-your-pgt-a-results\" class=\"wp-block-heading\"><a><\/a><strong>How to Read Your PGT-A Results<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Each tested embryo gets one of four results. Your doctor will go through the full report with you.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Result<\/strong><\/td><td><strong>What it means<\/strong><strong><\/strong><\/td><td><strong>Common next step<\/strong><strong><\/strong><\/td><\/tr><tr><td>Euploid<\/td><td>The sample shows the expected chromosome count<\/td><td>Often first in line for transfer<\/td><\/tr><tr><td>Aneuploid<\/td><td>The sample shows extra or missing chromosomes<\/td><td>Not transferred in most cases<\/td><\/tr><tr><td>Mosaic<\/td><td>An in-between result that suggests a mix of normal and abnormal cells<\/td><td>Discuss with your doctor and a genetic counselor<\/td><\/tr><tr><td>No result<\/td><td>The lab could not read the sample clearly<\/td><td>Ask your doctor if a re-biopsy is possible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues.jpg\" alt=\"Your doctor will go through your IVF report with you.\" class=\"wp-image-45561\" style=\"width:836px;height:auto\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues.jpg 1920w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-300x169.jpg 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-768x432.jpg 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-1536x864.jpg 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-1024x576.jpg 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-370x208.jpg 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-840x473.jpg 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-1290x725.jpg 1290w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-410x230.jpg 410w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-839x472.jpg 839w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-409x230.jpg 409w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-is-a-solution-for-couples-experiencing-fertility-issues-270x152.jpg 270w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">In a 2021 trial in <a href=\"https:\/\/www.nejm.org\/doi\/full\/10.1056\/NEJMoa2103613\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.nejm.org\/doi\/full\/10.1056\/NEJMoa2103613\" target=\"_blank\" rel=\"noopener\"><em>The New England Journal of Medicine<\/em><\/a>, tested embryos were <strong>69.8% euploid, 17.2% aneuploid, 11.7% mosaic, and 1.4% uncertain<\/strong>. These women were 20 to 37 years old with good embryo numbers. Older patients often see more aneuploid results.<\/p>\n\n\n\n<h3 id=\"what-about-mosaic-embryos\" class=\"wp-block-heading\"><a><\/a><strong>What About Mosaic Embryos?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.asrm.org\/practice-guidance\/practice-committee-documents\/clinical-management-of-mosaic-results-from-preimplantation-genetic-testing-for-aneuploidy-pgt-a-of-blastocysts-a-committee-opinion\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.asrm.org\/practice-guidance\/practice-committee-documents\/clinical-management-of-mosaic-results-from-preimplantation-genetic-testing-for-aneuploidy-pgt-a-of-blastocysts-a-committee-opinion\/\" target=\"_blank\" rel=\"noopener\">American Society for Reproductive Medicine (ASRM)<\/a> notes that mosaic results appear in about <strong>2% to 20%<\/strong> of tests, depending on the lab. Mosaic embryos implant less often. ASRM also reports they have more than twice the miscarriage rate of euploid embryos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There is good news too. In a review of more than 2,700 mosaic transfers cited by ASRM, <strong>fewer than 1%<\/strong> led to a pregnancy or baby confirmed to carry the chromosome change seen in the mosaic result. Learn more in our guide to <a href=\"https:\/\/genesisfertility.co.th\/en\/mosaic-embryo-meaning-and-transfer\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/mosaic-embryo-meaning-and-transfer\/\">mosaic embryos<\/a>.<\/p>\n\n\n\n<h2 id=\"what-pgt-a-embryo-screening-can-tell-you\" class=\"wp-block-heading\"><strong>What PGT-A Embryo Screening Can Tell You<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PGT-A answers one main question: does this sample have the expected number of chromosomes? Here is a side-by-side summary, followed by the detail.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>What PGT-A can tell you<\/strong><\/td><td><strong>What PGT-A cannot tell you<\/strong><strong><\/strong><\/td><\/tr><tr><td>Whether the tested cells have 46 chromosomes<\/td><td>Whether the embryo will implant<\/td><\/tr><tr><td>Extra or missing whole chromosomes, such as trisomy 21<\/td><td>Single-gene conditions, such as thalassemia<\/td><\/tr><tr><td>Large missing or extra chromosome pieces<\/td><td>Very small DNA changes<\/td><\/tr><tr><td>Sex chromosome count problems<\/td><td>Looks, height, or talents<\/td><\/tr><tr><td>Which embryos may carry a lower miscarriage risk<\/td><td>Whether a mosaic embryo will lead to a healthy baby<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples.jpg\" alt=\"Grading looks at shape and growth under a microscope.\" class=\"wp-image-45570\" style=\"width:840px;height:auto\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples.jpg 1920w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-300x169.jpg 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-768x432.jpg 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-1024x576.jpg 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-1536x864.jpg 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-370x208.jpg 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-1290x725.jpg 1290w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-840x473.jpg 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-410x230.jpg 410w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-839x472.jpg 839w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-409x230.jpg 409w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/IVF-for-couples-270x152.jpg 270w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Whole chromosome count.<\/strong> It checks all 23 pairs, including X and Y. It can spot an extra chromosome 21 (Down syndrome), 13 (Patau syndrome) or 18 (Edwards syndrome).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Sex chromosome changes.<\/strong> It can flag counts linked to Turner syndrome (one X) or Klinefelter syndrome (XXY).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Large missing or extra pieces.<\/strong> Many labs can see when a large section of a chromosome is lost or doubled. These are called segmental changes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Which embryos to transfer first.<\/strong> Results help your team rank embryos alongside <a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-the-basis-of-measuring-embryo-grading\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-the-basis-of-measuring-embryo-grading\/\">embryo grading<\/a>, which judges how an embryo looks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>A possible reason for past losses.<\/strong> If most embryos are aneuploid, it may help explain earlier failed transfers or miscarriages and guide next steps.<\/p>\n\n\n\n<h3 id=\"why-a-top-grade-embryo-can-still-fail\" class=\"wp-block-heading\"><a><\/a><strong>Why a Top-Grade Embryo Can Still Fail<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Grading looks at shape and growth under a microscope. It cannot see chromosomes. A top-grade embryo can still be aneuploid, and a lower-grade embryo can be normal. That is why some couples pair grading with PGT-A before choosing which embryo to transfer.<\/p>\n\n\n\n<h3 id=\"how-reliable-is-an-aneuploid-result\" class=\"wp-block-heading\"><a><\/a><strong>How Reliable Is an Aneuploid Result?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For whole-chromosome errors, the evidence is strong. In a blinded 2021 study in <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32863013\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32863013\/\" target=\"_blank\" rel=\"noopener\"><em>Fertility and Sterility<\/em><\/a>, embryos were transferred before anyone saw the results. <strong>None of the embryos labelled aneuploid led to an ongoing pregnancy<\/strong>, while about 65% of euploid embryos did. Results can vary by lab and test method.<\/p>\n\n\n\n<h2 id=\"what-pgt-a-cannot-tell-you\" class=\"wp-block-heading\"><a><\/a><strong>What PGT-A Cannot Tell You<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is the part many people miss. A normal result is good news, but it is not a promise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Whether the embryo will implant.<\/strong> The uterus, hormones, the lining and the transfer itself all play a part. In the STAR trial (<em>Fertility and Sterility<\/em>, 2019), about <strong>half of single euploid transfers<\/strong> led to an ongoing pregnancy at 20 weeks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Single-gene conditions.<\/strong> PGT-A does not test for thalassemia, a blood condition common in Thailand, or for cystic fibrosis. These need PGT-M.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Very small DNA changes.<\/strong> Tiny missing or extra bits below the lab\u2019s detection limit can be missed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Some whole-set errors.<\/strong> Standard NGS compares chromosome amounts, so it can miss triploidy (three full sets) or haploidy (one set). Some labs add a separate polyploidy check for this.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Traits or future health risks.<\/strong> It cannot predict looks, height, talents, or the risk of common adult diseases like diabetes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Every cell in the embryo.<\/strong> The biopsy samples the outer layer only. In some cases, the tested cells do not match the inner cell mass.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Whether you can skip prenatal tests.<\/strong> <a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/committee-opinion\/articles\/2020\/03\/preimplantation-genetic-testing\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/committee-opinion\/articles\/2020\/03\/preimplantation-genetic-testing\" target=\"_blank\" rel=\"noopener\">ACOG<\/a> advises that everyone who had PGT-A should still be offered prenatal screening or testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PGT-A also does not make embryos better. It only helps you choose among the embryos you already have.<\/p>\n\n\n\n<div class=\"gfc-quick-answer\" style=\"border-left:4px solid #0DB68D;background:#f2fbf8;padding:14px 18px;margin:0 0 20px;border-radius:8px\">\n  <p style=\"margin:0\">\n    <strong>Quick Summary:<\/strong> PGT-A (Preimplantation Genetic Testing for Aneuploidies), formerly known as PGS, is a test that checks the number of chromosomes in embryos created through IVF before they are transferred into the uterus. It helps identify embryos with missing or extra chromosomes (aneuploidy), as even embryos that appear to be of high quality may have chromosomal abnormalities that can lead to implantation failure or miscarriage. Doctors determine whether PGT-A is appropriate based on the age and medical history of each couple. (See the procedure and costs on the <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/pgt-a-by-ngs\/\">PGT-A Testing at GFC<\/a> page.)\n  <\/p>\n<\/div>\n\n\n\n<h2 id=\"the-key-benefits-of-pgt-a\" class=\"wp-block-heading\"><a><\/a><strong>The Key Benefits of PGT-A<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once we have a clear PGT-A result, it can improve the odds for each transfer:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Higher pregnancy rate per transfer, for some patients<\/strong> \u2013 Because we screen out chromosomally abnormal embryos before transfer (in a blinded study, none of the embryos labelled aneuploid led to an ongoing pregnancy), you avoid spending time and money on a transfer cycle that was unlikely to succeed. In the STAR trial, women aged 35 to 40 did better per transfer with PGT-A (51% vs 37%).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Lower miscarriage risk<\/strong> \u2013 Chromosome problems account for about half of early pregnancy losses. PGT-A addresses this at the root cause, meaningfully reducing this source of heartbreak for parents. In the 2021 NEJM trial, pregnancy loss was 8.7% with PGT-A vs 12.6% without, and the HFEA rates PGT-A green for lowering the chance of miscarriage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Lower risk of a chromosome condition<\/strong> \u2013 Helps you avoid transferring an embryo with a chromosome count linked to conditions such as Down syndrome. It does not check single genes or very small DNA changes, so no result can promise a healthy baby.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Supports single embryo transfer (SET)<\/strong> \u2013 Gives your doctor confidence to transfer just one, carefully confirmed embryo rather than two, reducing the risk of multiple pregnancy, which carries real dangers for both mother and babies, including preeclampsia and preterm birth.<\/p>\n\n\n\n<h2 id=\"what-the-research-says-about-pgt-a-success-rates\" class=\"wp-block-heading\"><a><\/a><strong>What the Research Says About PGT-A Success Rates<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PGT-A tends to raise the chance of success <strong>per transfer<\/strong>, because fewer transfers are spent on embryos with little chance. It has not been shown to raise the <strong>total<\/strong> chance of a baby from one egg collection for everyone. Here is what major studies and groups found.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Source<\/strong><\/td><td><strong>What it found<\/strong><strong><\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31551155\/\" target=\"_blank\" rel=\"noopener\">STAR trial, Fertility and Sterility (2019)<\/a>: 661 women aged 25 to 40<\/td><td>No overall gain in ongoing pregnancy per transfer (50% vs 46%). Women aged 35 to 40 did better per transfer (51% vs 37%) in a separate look at that age group.<\/td><\/tr><tr><td><a href=\"https:\/\/www.nejm.org\/doi\/full\/10.1056\/NEJMoa2103613\" target=\"_blank\" rel=\"noopener\">Yan et al., The New England Journal of Medicine (2021)<\/a>: 1,212 women aged 20 to 37<\/td><td>Total live birth rate was 77.2% with PGT-A and 81.8% without. Pregnancy loss was lower with PGT-A (8.7% vs 12.6%).<\/td><\/tr><tr><td><a href=\"https:\/\/www.asrm.org\/practice-guidance\/practice-committee-documents\/the-use-of-preimplantation-genetic-testing-for-aneuploidy-a-committee-opinion-2024\/\" target=\"_blank\" rel=\"noopener\">ASRM committee opinion (2024)<\/a><\/td><td>Its value as a routine test for all IVF patients has not been shown.<\/td><\/tr><tr><td><a href=\"https:\/\/www.hfea.gov.uk\/treatments\/treatment-add-ons\/pre-implantation-genetic-testing-for-aneuploidy-pgt-a\" target=\"_blank\" rel=\"noopener\">HFEA, the UK fertility regulator (2023)<\/a><\/td><td>Rated red for raising the chance of a baby for most patients, and green for lowering the chance of miscarriage.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Why the gap? PGT-A is a sorting tool. It cannot create new healthy embryos. If a viable embryo is set aside because of a mosaic or wrong result, total odds can dip slightly. For people with several embryos, the main gains are often fewer transfers and fewer losses.<\/p>\n\n\n\n<div class=\"gfc-related-services\" style=\"border:1px solid #0DB68D;background:#f2fbf8;border-radius:10px;padding:16px 20px;margin:24px 0;\">\n  <p style=\"margin:0 0 8px;font-weight:700;\">Related Services at GFC<\/p>\n  <ul style=\"margin:0 0 12px;padding-left:22px;\">\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/fertility-counseling\/\" style=\"color:#078F6D;text-decoration:underline;\">Fertility Consultation for Both Partners<\/a>: assess fertility in both partners and plan treatment<\/li>\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/iui\/\" style=\"color:#078F6D;text-decoration:underline;\">IUI (Intrauterine Insemination)<\/a>: a first-step treatment option when medically indicated<\/li>\n    <li><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/ivf-icsi-bangkok\/\" style=\"color:#078F6D;text-decoration:underline;\">IVF\/ICSI<\/a>: an overview of the steps, timeline and costs<\/li>\n  <\/ul>\n  <p style=\"margin:0;\">Available at 3 branches: <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama9\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 9<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama3\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 3<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-ubon-ratchathani\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Ubon Ratchathani<\/a>, or <a href=\"https:\/\/genesisfertility.co.th\/en\/appointment\/\" style=\"color:#078F6D;text-decoration:underline;\">book online<\/a>.<\/p>\n<\/div>\n\n\n\n<h2 id=\"risks-and-trade-offs-to-know\" class=\"wp-block-heading\"><a><\/a><strong>Risks and Trade-Offs to Know<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF.jpg\" alt=\"IVF also has its risks.\" class=\"wp-image-45585\" style=\"width:840px;height:auto\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF.jpg 1920w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-300x169.jpg 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-768x432.jpg 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-1536x864.jpg 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-1024x576.jpg 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-370x208.jpg 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-1290x725.jpg 1290w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-410x230.jpg 410w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-840x473.jpg 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-409x230.jpg 409w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-839x472.jpg 839w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/Risks-of-IVF-270x152.jpg 270w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Every add-on has trade-offs. These are the main ones for PGT-A.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Biopsy risk.<\/strong> Removing cells can, in some cases, harm an embryo. A blinded study in <em>Fertility and Sterility<\/em> found that biopsied and untested embryos implanted at similar rates.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>PGT-A accuracy.<\/strong> The HFEA notes that the test is mostly very accurate, but can miss a problem or flag one that is not there.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Fewer embryos to transfer.<\/strong> Some viable embryos may be set aside, for example, after a mosaic or no result finding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>No embryo to transfer.<\/strong> If all tested embryos are aneuploid, there may be no transfer that cycle. This is hard news, but it can spare you failed transfers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Extra cost and time.<\/strong> Testing is charged per embryo, and the transfer happens in a later frozen cycle.<\/p>\n\n\n\n<h2 id=\"pgt-a-at-genesis-fertility-center\" class=\"wp-block-heading\"><a><\/a><strong>PGT-A at Genesis Fertility Center<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Founded in 2016, Genesis Fertility Center (GFC) has branches at Rama 9 and Rama 3 in Bangkok, and in Ubon Ratchathani. Care is led by <strong>Assoc. Prof. Dr. Pitak Laokirkkiat<\/strong>, a reproductive medicine specialist (Thai Medical Council license 18494).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At GFC, we combine an experienced medical team and embryology scientists with a clean, internationally standard closed-system laboratory. For PGT-A in Bangkok and Ubon Ratchathani, GFC offers:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Six ESHRE-certified clinical embryologists<\/strong>, certified in 2023 and 2024<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NGS testing through Genosomics Co., Ltd., rated <strong>\u201cSatisfactory\u201d<\/strong> in the UK\u2019s GenQA quality program for 2022 and 2023<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Thai assisted reproductive technology service certification, granted in 2017<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Biopsy at the blastocyst stage, with embryos frozen for a later transfer cycle<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EmbryoScope Plus and Geri time-lapse incubators with AI-assisted assessment<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our specialists recommend PGT-A based on your history, not as a default add-on. They explain the benefits, limits and likely outcomes before treatment, so you can make an informed choice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can review baseline treatment costs on our <a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-price-packages-2026\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-price-packages-2026\/\">ICSI packages and pricing 2026 page<\/a>, or see <a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-total-cost-first-time\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-total-cost-first-time\/\">our full breakdown of first-time ICSI costs<\/a>, which shows exactly where PGT-A fits into a typical treatment budget, or come in to speak with our team directly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PGT-A is priced at 37,900 THB per embryo tested, you can choose to test only your best-graded embryos rather than sending every embryo for testing. Ask our team for a written quote before your cycle starts.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"558\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-1024x558.webp\" alt=\"\" class=\"wp-image-35574\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-1024x558.webp 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-300x164.webp 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-768x419.webp 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-1536x837.webp 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-2048x1117.webp 2048w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-370x202.webp 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-840x458.webp 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/\u0e41\u0e1e\u0e17\u0e22\u0e4c-05-1-410x224.webp 410w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/page.line.me\/gfcclinic?openQrModal=true\" target=\"_blank\" rel=\"noopener\"><strong>Chat with us on LINE<\/strong><\/a><strong><u><\/u><\/strong><\/p>\n\n\n\n<h2 id=\"who-is-suitable-for-pgt-a\" class=\"wp-block-heading\"><a><\/a><strong>Who Is Suitable for PGT-A?<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening.jpg\" alt=\"PGT-A is recommended for mothers aged 35 years old and above. \" class=\"wp-image-45591\" style=\"width:840px;height:auto\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening.jpg 1920w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-300x169.jpg 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-768x432.jpg 768w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-1024x576.jpg 1024w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-1536x864.jpg 1536w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-370x208.jpg 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-1290x725.jpg 1290w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-840x473.jpg 840w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-410x230.jpg 410w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-839x472.jpg 839w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-409x230.jpg 409w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/04\/PGT-A-embryo-screening-270x152.jpg 270w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">While PGT-A is optional, I recommend it especially for couples with any of the following:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Mothers aged 35 or older<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Couples with a history of two or more consecutive unexplained miscarriages<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Couples who have had two or more good-grade embryos fail to implant after <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/ivf-icsi-bangkok\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/ivf-icsi-bangkok\/\">IVF\/ICSI<\/a> (repeated implantation failure)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Couples with a personal or family history of a chromosomal condition, including a past pregnancy with a chromosome condition<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Couples who want to transfer <strong>one embryo at a time<\/strong> with more confidence<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Patients who travel to Bangkok for treatment and want to plan for fewer transfer trips<\/p>\n\n\n\n<h3 id=\"when-pgt-a-may-add-less\" class=\"wp-block-heading\"><a><\/a><strong>When PGT-A May Add Less<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Younger patients with several good embryos.<\/strong> The NEJM trial found no gain in total live births for this group.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Patients with only one or two embryos.<\/strong> Testing may leave no embryo to transfer, though it can also save time on a transfer that is unlikely to work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Couples who would transfer any embryo<\/strong> no matter the result.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <a href=\"https:\/\/genesisfertility.co.th\/en\/services\/fertility-counseling\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/fertility-counseling\/\">fertility counseling<\/a> session can help you weigh these points against your age, embryo count and goals.<\/p>\n\n\n\n<div class=\"gfc-related-services\" style=\"border:1px solid #0DB68D;background:#f2fbf8;border-radius:10px;padding:16px 20px;margin:24px 0;\">\n  <p style=\"margin:0 0 8px;font-weight:700;\">Related Services at GFC<\/p>\n  <ul style=\"margin:0 0 12px;padding-left:22px;\">\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/fertility-counseling\/\" style=\"color:#078F6D;text-decoration:underline;\">Fertility Consultation for Both Partners<\/a>: assess fertility in both partners and plan treatment<\/li>\n    <li style=\"margin-bottom:4px;\"><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/iui\/\" style=\"color:#078F6D;text-decoration:underline;\">IUI (Intrauterine Insemination)<\/a>: a first-step treatment option when medically indicated<\/li>\n    <li><a href=\"https:\/\/genesisfertility.co.th\/en\/services\/ivf-icsi-bangkok\/\" style=\"color:#078F6D;text-decoration:underline;\">IVF\/ICSI<\/a>: an overview of the steps, timeline and costs<\/li>\n  <\/ul>\n  <p style=\"margin:0;\">Available at 3 branches: <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama9\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 9<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-rama3\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Rama 3<\/a> \u00b7 <a href=\"https:\/\/genesisfertility.co.th\/en\/clinic-ubon-ratchathani\/\" style=\"color:#078F6D;text-decoration:underline;\">GFC Ubon Ratchathani<\/a>, or <a href=\"https:\/\/genesisfertility.co.th\/en\/appointment\/\" style=\"color:#078F6D;text-decoration:underline;\">book online<\/a>.<\/p>\n<\/div>\n\n\n\n<h2 id=\"whats-new-in-embryo-testing\" class=\"wp-block-heading\"><a><\/a><strong>What\u2019s New in Embryo Testing<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Embryo chromosome testing keeps moving forward. Here are the trends worth knowing in 2026.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Non-invasive PGT-A (niPGT-A).<\/strong> This tests DNA that the embryo releases into its culture fluid, with no biopsy. A 2022 review in the <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35408927\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/35408927\/\" target=\"_blank\" rel=\"noopener\"><em>International Journal of Molecular Sciences<\/em><\/a> found that match rates with biopsy results vary, so it is not yet ready to replace biopsy-based testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Polyploidy checks.<\/strong> Some labs now add tests that can spot triploidy. GFC offers <strong>NGS Plus<\/strong>, which pairs PGT-A with a polyploidy check.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Time-lapse imaging and AI scoring.<\/strong> Tools such as EmbryoScope Plus and iDAScore track how embryos grow. GFC uses both. They judge growth, not chromosomes, so they work alongside PGT-A.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>More mosaic transfers.<\/strong> ASRM guidance (2023) now treats some mosaic embryos as a valid option after genetic counseling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Polygenic risk scores (PGT-P).<\/strong> Some companies abroad sell embryo \u201crisk scores\u201d for common diseases. The <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38393332\/\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/38393332\/\" target=\"_blank\" rel=\"noopener\">American College of Medical Genetics and Genomics (2024)<\/a> and ASRM say this is not ready for clinical use. The <a href=\"https:\/\/www.hfea.gov.uk\/about-us\/our-blog\/pgt-p-is-not-lawful-in-the-uk-is-not-supported-by-evidence-and-may-reduce-the-chances-of-having-a-baby-overall\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.hfea.gov.uk\/about-us\/our-blog\/pgt-p-is-not-lawful-in-the-uk-is-not-supported-by-evidence-and-may-reduce-the-chances-of-having-a-baby-overall\" target=\"_blank\" rel=\"noopener\">UK regulator confirmed in 2025<\/a> that it is not lawful there.<\/p>\n\n\n\n<h2 id=\"questions-to-ask-before-you-choose-pgt-a\" class=\"wp-block-heading\"><a><\/a><strong>Questions to Ask Before You Choose PGT-A<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bring these questions to your first visit:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1.&nbsp;&nbsp;&nbsp;&nbsp; Based on my age and history, how likely is PGT-A to help me?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2.&nbsp;&nbsp;&nbsp;&nbsp; How many blastocysts do you expect I will have for testing?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3.&nbsp;&nbsp;&nbsp;&nbsp; Does the lab report mosaic and segmental results, and would you transfer a mosaic embryo?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4.&nbsp;&nbsp;&nbsp;&nbsp; Does my test include a polyploidy check for triploidy?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5.&nbsp;&nbsp;&nbsp;&nbsp; What happens if a sample gives no result?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">6.&nbsp;&nbsp;&nbsp;&nbsp; Do I need PGT-M or PGT-SR as well?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">7.&nbsp;&nbsp;&nbsp;&nbsp; What is the total cost per embryo, and when will results be ready?<\/p>\n\n\n\n<h2 id=\"frequently-asked-questions\" class=\"wp-block-heading\"><a><\/a><strong>Frequently Asked Questions<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What is a \u201cmosaic\u201d embryo result, and can a mosaic embryo still be transferred?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A mosaic embryo contains a mixture of two cell populations, some with a normal chromosome count and some with an abnormality, within the same embryo (ASRM notes these results appear in about 2% to 20% of tests, depending on the lab). Mosaic embryos implant less often than euploid embryos, but in a review of more than 2,700 mosaic transfers cited by ASRM, fewer than 1% led to a pregnancy or baby confirmed to carry the chromosome change. If a patient has no fully chromosomally normal embryos available, your doctor can assess the specific risk profile and, in some cases, after genetic counseling, recommend transferring a suitable mosaic embryo, which can still result in a healthy pregnancy. If you do proceed with a transfer, <a href=\"https:\/\/genesisfertility.co.th\/en\/progesterone-miscarriage-prevention-what-is\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/progesterone-miscarriage-prevention-what-is\/\">progesterone support after embryo transfer<\/a> plays an important role in helping sustain the pregnancy through the earliest weeks. Learn more in our guide to <a href=\"https:\/\/genesisfertility.co.th\/en\/mosaic-embryo-meaning-and-transfer\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/mosaic-embryo-meaning-and-transfer\/\">mosaic embryos<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can a PGT-A result be inaccurate or misread?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is uncommon, especially for whole-chromosome results. The <a href=\"https:\/\/www.hfea.gov.uk\/treatments\/treatment-add-ons\/pre-implantation-genetic-testing-for-aneuploidy-pgt-a\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.hfea.gov.uk\/treatments\/treatment-add-ons\/pre-implantation-genetic-testing-for-aneuploidy-pgt-a\" target=\"_blank\" rel=\"noopener\">HFEA<\/a> notes the test is mostly very accurate but can miss a problem or flag one that is not there, and results can vary by lab and test method. Errors can come from mosaicism (where the biopsied placental cells don\u2019t perfectly reflect the cells inside the embryo itself) or from background noise during DNA amplification. You can read more about <a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-ngs-in-pgt-a-the-technology-behind-embryo-chromosome-testing\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/what-is-ngs-in-pgt-a-the-technology-behind-embryo-chromosome-testing\/\">how NGS works in PGT-A<\/a>. Because of this, we still recommend that mothers who conceive via a PGT-A-tested embryo undergo standard Down syndrome screening again at 11\u201314 weeks of pregnancy, for maximum safety. <a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/committee-opinion\/articles\/2020\/03\/preimplantation-genetic-testing\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.acog.org\/clinical\/clinical-guidance\/committee-opinion\/articles\/2020\/03\/preimplantation-genetic-testing\" target=\"_blank\" rel=\"noopener\">ACOG<\/a> also advises that everyone who has had PGT-A should be offered prenatal screening or testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What embryo stage is best for the PGT-A biopsy?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The blastocyst stage (Day 5\u20136) is the safest and most suitable stage. In the early years of this technology, cells were sometimes biopsied from Day 3 embryos, which have only about 8 cells total. Removing one cell meant losing 12.5% of the embryo, which could bruise it and slow its growth. At Day 5, the embryo has over 100 cells, so removing 5\u20138 cells from the placental layer represents a very small proportion, with a much lower risk of harming development.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How is the PGT-A cost calculated, and is it worth it?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The standard fee is 37,900 THB per embryo tested. You can choose to test only your best-graded embryos rather than every one. Your total depends on how many blastocysts you have. See current fees on our <a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-price-packages-2026\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/icsi-price-packages-2026\/\">ICSI packages and PGT-A pricing<\/a> page, and ask our team for a written quote before your cycle starts. In my view, this is especially worthwhile for women over 35: a single transfer cycle already carries costs for uterine-lining preparation medication, physician fees, and procedure costs. If an untested, abnormal embryo is transferred, you not only lose that cycle\u2019s cost but, if miscarriage follows, also lose months of physical and emotional recovery time. PGT-A helps save both time and heartbreak in the long run.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What happens if PGT-A shows that every embryo is chromosomally abnormal?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I understand this is one of the most difficult situations for parents to face, but knowing in advance is still better than transferring and later miscarrying. If this happens, we schedule a consultation to investigate the underlying cause together, assessing whether the issue traces back to egg or sperm quality (for example, high sperm DNA fragmentation in the male partner). From there, we can build a more intensive 3-month preparation plan, adjust the stimulation medication protocol, or bring in advanced sperm selection technology such as <a href=\"https:\/\/genesisfertility.co.th\/microfluidic-sperm-sorting-mss\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/microfluidic-sperm-sorting-mss\/\">Microfluidic Sperm Sorting (MSS)<\/a> for the next cycle to improve the chances of a normal embryo. Next steps may also include another cycle to collect more eggs, and counseling can help you decide what feels right.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Does a euploid result mean my baby will be healthy?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No test can promise that. A euploid result means the tested cells had the expected number of chromosomes. It does not check single genes, very small DNA changes, or problems that can arise later in pregnancy. That is why ACOG advises offering standard prenatal screening or testing after PGT-A.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Is PGT-A worth it if I am under 35?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It depends on your history and how many embryos you have. In a large NEJM trial of women aged 20 to 37 with at least three good embryos, PGT-A did not raise the total live birth rate. It may still help if you have had repeat miscarriages or failed transfers. Your doctor can weigh the cost against your personal odds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can the biopsy harm my embryo?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Any biopsy carries some risk, which is why trained embryologists take cells only from the outer layer at the blastocyst stage. A blinded study in <em>Fertility and Sterility<\/em> found that biopsied embryos implanted at rates similar to untested ones. Still, the HFEA notes that removing cells can, in some cases, damage an embryo. Your doctor can explain how the lab handles each biopsy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Can PGT-A tell me my embryo\u2019s sex?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The test reads the X and Y chromosomes, so it can count them. This matters for conditions such as Turner syndrome. However, <a href=\"https:\/\/www.tmc.or.th\/ethics-02.php\" target=\"_blank\" rel=\"noopener\"><\/a><a href=\"https:\/\/www.tmc.or.th\/ethics-02.php\" target=\"_blank\" rel=\"noopener\">Thai law<\/a> does not permit choosing an embryo\u2019s sex for non-medical reasons. Your doctor will explain what the report can and cannot be used for.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Do I still need prenatal tests after PGT-A?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. ACOG recommends offering prenatal screening or diagnostic testing to all patients who had PGT-A, the same as for any pregnancy. Options include NIPT, a blood screening test, and, when needed, tests such as amniocentesis. These check the pregnancy itself, not just a few early cells.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Is PGT-A the same as PGS?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. PGS, or preimplantation genetic screening, is the older name. Experts now group these tests under PGT: PGT-A for chromosome counts, PGT-M for single genes and PGT-SR for structural changes. The goal of PGT-A has stayed the same: to find embryos with the expected chromosome count.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/genesisfertility.co.th\/contact\/\"><strong>Book a Consultation with GFC<\/strong><\/a><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/strong> <a href=\"https:\/\/page.line.me\/gfcclinic?openQrModal=true\" target=\"_blank\" rel=\"noopener\"><strong>Chat on LINE<\/strong><\/a><\/p>\n\n\n\n<h2 id=\"why-choose-genesis-fertility-center-gfc\" class=\"wp-block-heading\"><a><\/a><strong>Why Choose Genesis Fertility Center (GFC)?<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"405\" src=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/07\/GFC1.png\" alt=\"Genesis Fertility Center\" class=\"wp-image-39550\" srcset=\"https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/07\/GFC1.png 630w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/07\/GFC1-300x193.png 300w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/07\/GFC1-370x238.png 370w, https:\/\/genesisfertility.co.th\/wp-content\/uploads\/2026\/07\/GFC1-410x264.png 410w\" sizes=\"(max-width: 630px) 100vw, 630px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Every fertility journey is unique, and choosing the right fertility clinic is an important step toward building your family. <a href=\"https:\/\/genesisfertility.co.th\/en\/\" data-type=\"link\" data-id=\"https:\/\/genesisfertility.co.th\/en\/\">Genesis Fertility Center (GFC)<\/a>, a fertility provider with three centres in Thailand, has provided <a href=\"https:\/\/genesisfertility.co.th\/en\/service\/\" data-type=\"link\" data-id=\"https:\/\/genesisfertility.co.th\/en\/service\/\">fertility care<\/a> in more than 3,600 cases and helped achieve more than 2,300 pregnancies using advanced Assisted Reproductive Technology (ART), including IVF, ICSI,&nbsp;<a href=\"https:\/\/genesisfertility.co.th\/en\/services\/egg-freezing-thailand\/\">Egg Freezing<\/a>, Embryo Freezing, and PGT-A. We combine advanced laboratory technology with treatment protocols to deliver care tailored to your individual fertility needs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our fertility team of obstetricians, gynecologists, fertility specialists, and embryologists is committed to providing compassionate care, clear communication, and transparent pricing throughout every stage of your fertility journey.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To learn more or schedule a consultation, please contact Genesis Fertility Center (GFC).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Call Center:<\/strong> 097-484-5335 (Bangkok) or (+66) 62-978-8515 (Ubon Ratchathani)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>LINE:<\/strong> @gfcclinic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Online:<\/strong> <a href=\"https:\/\/genesisfertility.co.th\/en\/contact\/\"><\/a><a href=\"https:\/\/genesisfertility.co.th\/en\/contact\/\">Book a consultation<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Clinic Hours<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Monday \u2013 Friday: 9:00 AM \u2013 8:00 PM<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Saturday \u2013 Sunday: 8:00 AM \u2013 8:00 PM<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>This article is for general information and does not replace a personal medical consultation. Results vary from person to person.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fertility specialists often explain embryo grading this way: assessing an embryo by appearance under a&hellip;<\/p>\n","protected":false},"author":29,"featured_media":45505,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_title":"","_yoast_wpseo_focuskw":"","rank_math_description":"Learn what PGT-A is, how embryo chromosome screening works, who may benefit, its benefits and limitations, and what to expect during IVF treatment.","rank_math_title":"What Is PGT-A? Complete Guide to Embryo Screening | GFC","rank_math_focus_keyword":"pgt-a"},"categories":[504],"tags":[],"class_list":["post-39940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pgt-a"],"acf":{},"_links":{"self":[{"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/posts\/39940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/comments?post=39940"}],"version-history":[{"count":29,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/posts\/39940\/revisions"}],"predecessor-version":[{"id":45652,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/posts\/39940\/revisions\/45652"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/media\/45505"}],"wp:attachment":[{"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/media?parent=39940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/categories?post=39940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/genesisfertility.co.th\/en\/wp-json\/wp\/v2\/tags?post=39940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}