{"id":11909,"date":"2025-12-17T16:18:38","date_gmt":"2025-12-17T16:18:38","guid":{"rendered":"https:\/\/dev-east-1.progyny.com\/?p=11909"},"modified":"2025-12-22T14:18:39","modified_gmt":"2025-12-22T14:18:39","slug":"assisted-hatching-ivf-to-improve-implantation-success-rates","status":"publish","type":"post","link":"https:\/\/progyny.com\/education\/assisted-hatching-ivf-to-improve-implantation-success-rates\/","title":{"rendered":"What is assisted hatching in IVF ?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\"><span data-contrast=\"auto\">Updated by the Progyny Clinical Team \u2014 December 2025<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Going through an in vitro fertilization (IVF) cycle that doesn&#8217;t work can be very frustrating. One reason this can happen is that the embryo doesn&#8217;t implant in the uterus, which is needed for pregnancy to occur.<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">If&nbsp;you&#8217;ve&nbsp;had more than one failed IVF cycle or if your fertility doctor thinks you might face challenges with IVF, they might suggest a procedure called assisted hatching to help improve your chances.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-contrast=\"none\">What is&nbsp;assisted&nbsp;hatching?<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">After an egg is fertilized in the lab, it begins to grow and divide into cells. The growing embryo is surrounded by a protein shell called the zona pellucida. For the embryo to stick to the uterus and start a pregnancy, it needs to \u201chatch\u201d out of this shell.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Assisted hatching is a lab procedure where the embryologist (a scientist who works with embryos) makes a tiny hole in the zona pellucida to help the embryo hatch more easily. This can give the embryo a better chance to attach to the uterus.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Most of the time, assisted hatching is done on day 3 (when the embryo has 6 to 8 cells) or day 5 (when the embryo is more developed, called a blastocyst). The embryologist uses special tools, like a laser or sometimes a tiny needle, to make the hole in the shell. After that, the embryo is placed back into the incubator to keep growing.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-contrast=\"none\">Who might&nbsp;benefit&nbsp;from assisted hatching?<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Assisted hatching is not needed for everyone. It may be suggested for people who:<\/span><span data-ccp-props=\"{&quot;335559685&quot;:0}\">&nbsp;<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span data-contrast=\"auto\">Are 38 or older<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n\n\n\n<li><span data-contrast=\"auto\">Have had two or more IVF cycles that did not result in pregnancy<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n\n\n\n<li><span data-contrast=\"auto\">Have embryos that\u00a0appear to have\u00a0slower or lower-quality development<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n\n\n\n<li><span data-contrast=\"auto\">Want their embryos to undergo genetic testing (assisted hatching is the first step when performing an embryo biopsy)<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">In these cases,&nbsp;assisted&nbsp;hatching can help embryos that may have trouble breaking out of their shell on their own, giving them a better chance to attach to the uterus.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-contrast=\"none\">Does&nbsp;assisted&nbsp;hatching increase IVF success?<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Assisted hatching can help some people get pregnant, especially those with embryos that are struggling to hatch or who are older. However, it doesn&#8217;t guarantee success. Some studies show it can improve pregnancy rates for certain people, but the results can vary.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">The success of assisted hatching also depends on the embryologist&#8217;s experience.It\u2019s important to ask your clinic about their success with this procedure.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-contrast=\"none\">Is&nbsp;assisted&nbsp;hatching safe?<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Like any medical procedure, assisted hatching does come with some risks, but it is generally safe when done by an experienced embryologist. Possible risks include:<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span data-contrast=\"auto\">Embryo damage: If the zona pellucida is weakened too much, the embryo might not survive.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n\n\n\n<li><span data-contrast=\"auto\">Higher chance of twins: Assisted hatching can sometimes lead to twins if more than one embryo successfully implants in the uterus.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">These risks are small, but it&#8217;s something to consider when deciding if assisted hatching is right for you.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span data-contrast=\"none\">Conclusion<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">&nbsp;<\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"auto\">Assisted hatching can help improve your chances of getting pregnant with IVF, especially if you have certain risk factors like older age or poor embryo quality. However, it\u2019s not a guarantee. Talk to your fertility care team about whether assisted hatching is a good option for you and make sure to ask about their experience with the procedure.<\/span><span data-ccp-props=\"{}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span data-contrast=\"none\">Progyny is here for you, too. Please contact your Progyny Care Advocate for support.<\/span><b><span data-contrast=\"none\">&nbsp;<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;201341983&quot;:0,&quot;335551550&quot;:1,&quot;335551620&quot;:1,&quot;335559737&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:279}\">&nbsp;<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b><span data-contrast=\"none\">Disclaimer:<\/span><\/b><span data-contrast=\"none\">&nbsp;The information provided by Progyny is for educational purposes only and is not medical advice. Always consult a qualified healthcare provider for medical guidance.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;201341983&quot;:0,&quot;335551550&quot;:1,&quot;335551620&quot;:1,&quot;335559737&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:279}\">&nbsp;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Assisted hatching is thought to be helpful for some couples with a poor prognosis whose embryos are thought to lack sufficient energy to complete the hatching process<\/p>\n","protected":false},"author":25,"featured_media":30050,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[230,229],"tags":[228],"class_list":["post-11909","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-education","category-ivf-facts","tag-article"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What is assisted hatching in IVF ? 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