
Dr. Himanshu Bavishi
MBBS, MD (Obstetrics & Gynaecology) · Infertility, IVF & Genetics
Even a perfect embryo needs the right moment to implant. The ERA test finds your personal window of implantation, so the transfer is timed precisely for you.

The Endometrial Receptivity Analysis (ERA) is a genomic test that determines the best time to transfer an embryo. The uterine lining is only receptive to an embryo during a short window of implantation, and in some women this window is shifted earlier or later than the standard transfer day.
By analysing the activity of receptivity-related genes in a small endometrial biopsy taken during a mock cycle, the ERA identifies each woman's personalised window of implantation. The embryo transfer is then timed to that window — particularly useful after good embryos have repeatedly failed to implant.

Co-founder & Senior Fertility Specialist · Infertility, IVF & Genetics
Ahmedabad | Bavishi Fertility Institute
Last medically reviewed on . This page is educational and is not a substitute for personalised medical advice.
The ERA is selective — most useful in implantation failure.
Personalised transfer timing for selected couples.
A mock cycle and biopsy that guide the real transfer.
We confirm the ERA is appropriate, usually after repeated implantation failure.
The lining is prepared exactly as it would be for an embryo transfer.
A small lining sample is taken at the planned transfer timing.
Receptivity-gene activity is analysed to find your window of implantation.
The frozen-embryo transfer is timed precisely to your personal window.
Every fertility journey is unique. ERA Test success rates depend on several medical and lifestyle factors.
Factors affecting success
The ERA helps the subset of couples whose failures are due to a displaced window. It is not needed by everyone, and it cannot overcome other causes of failure.
Know exactly what your ERA Test treatment cost includes before you begin.
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Most couples have a normal window and do not need an ERA.
The ERA requires a separate mock cycle before transfer.
The biopsy can cause brief cramping or spotting.
Meet the Bavishi Fertility Institute specialists who treat patients with ERA Test.
It analyses receptivity genes in the uterine lining to find your personalised window of implantation, so an embryo can be transferred at exactly the right time.
Mainly women with repeated implantation failure despite good-quality embryos, including failed transfers of genetically-tested embryos.
No. It uses a separate mock cycle that mimics the transfer, so the lining can be biopsied without using an embryo. The real transfer follows later.
No. It helps when failure is caused by a displaced window of implantation, but it cannot fix other causes such as embryo or uterine problems.
It usually causes only brief cramping, similar to a smear test, and is done quickly in the clinic.
This page is for educational purposes and is medically reviewed by Dr. Falguni Bavishi, MBBS, MD (Obstetrics & Gynaecology). It is not a substitute for personal medical advice — please consult our doctors for guidance specific to you.
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Helpful reads on ERA Test from the Bavishi Fertility Institute specialists.
Everything you need to understand about ERA Test — how it works, who it helps and what to expect on your journey.
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Our specialists share the factors that influence ERA Test outcomes and the steps that can improve your chances.
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Ask our specialists whether an ERA test could personalise your transfer timing — book a consultation.
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