The Endometrial Receptivity Array (ERA) is a specialized diagnostic test used in IVF to determine the best time for embryo transfer by analysing the receptivity of the uterine lining (endometrium). It helps detect the “window of implantation” - the precise time when the uterus is most likely to accept an embryo.
At Zemya IVF & Fertility Clinics, we offer ERA testing in Delhi to personalize embryo transfer timing, especially for women who have had repeated IVF failures or unexplained implantation issues.
ERA is not a routine test for all IVF patients. It is recommended in the following cases:
The ERA test is most useful for identifying a displaced window of implantation, which occurs in around 20–25% of IVF patients.
The ERA test is performed during a mock embryo transfer cycle, without actually transferring an embryo. Here’s how it works:
The recipient undergoes a controlled hormonal cycle to prepare the uterus just as in a real embryo transfer. Estrogen and progesterone are given in specific doses over a few days.
On a specific day (usually after 5 full days of progesterone exposure), a small tissue sample is taken from the uterine lining using a thin catheter.
The endometrial cells are sent to a specialized lab where over 200 genes related to endometrial receptivity are analyzed using advanced molecular technology.
The ERA test result will determine if the endometrium is:
Based on the ERA result, a personalized embryo transfer (pET) plan is created for the next frozen embryo cycle. This significantly improves the chances of successful implantation.
Despite these limitations, ERA has helped many couples achieve pregnancy after repeated IVF failures.
The cost of the ERA test can vary based on several factors, including:
At Zemya IVF & Fertility Clinics, we offer affordable ERA testing in Delhi, with transparent guidance and personalized planning. Our goal is to help you succeed without unnecessary procedures or costs.
At Zemya IVF & Fertility Clinics, we design each treatment plan around your specific needs and medical history.
With over 40+ years of combined experience and more than 10,000 healthy deliveries, our team is committed to helping you achieve your dream of parenthood with skill, care, and compassion.
Here’s what makes Zemya IVF & Fertility Clinics one of the top 5 IVF and fertility centres in Delhi:
Each treatment is designed specifically around your medical history, goals, and emotional needs.
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We explain everything clearly—no hidden fees, no unnecessary procedures.
Get access to the best care at a cost that respects your budget.
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Whether you’re just starting out or seeking a second opinion, Zemya IVF & Fertility Clinics is here to guide you every step of the way, with experience you can trust, and care you can feel.
The biopsy may cause mild discomfort or cramping, similar to a Pap smear. Most women resume normal activities the same day.
Yes, especially for women with repeated implantation failure. By identifying the optimal day for transfer, ERA increases the chance of embryo implantation.
No. ERA requires a mock cycle. After the result, frozen embryo transfer is planned based on the recommended timing.
Results are usually available within 2–3 weeks after the biopsy.
Studies suggest that around 20–25% of women have a shifted window, meaning standard transfer timing may not work for them.
Not necessarily. It’s most useful for women who’ve had two or more failed IVF cycles with high-quality embryos.
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