Endometrial Receptivity Analysis
What is the ERA test?
The ERA test identifies your “window of implantation” — the short phase when the womb lining is most ready to accept an embryo. A small sample of the uterine lining is analysed genetically to pinpoint your personal ideal timing for embryo transfer, so it isn’t left to a standard estimate.
How does it help?
By finding your exact window of implantation, the ERA test ensures the embryo is placed when your womb is most receptive — improving the chance of successful implantation, especially after previous failures.
When to consider it?
ERA is recommended mainly for women who’ve had repeated IVF failures despite good-quality embryos, where mistimed transfer may be the hidden reason. It helps personalise your treatment when standard timing hasn’t worked.
What does the process involve?
In a mock cycle, you take the same hormones used before an embryo transfer, and a small lining sample is taken painlessly, much like a routine biopsy. The sample is analysed to determine whether your lining is receptive, early, or late — and your next transfer is then timed precisely to match your personal window.
Have any questions?
FAQs
Is the ERA test painful?
No — the lining sample is taken quickly and causes only mild cramping, similar to a period. No anaesthesia is needed.
Why is a mock cycle needed before the test?
The mock cycle recreates the exact hormonal conditions of an embryo transfer, so your window of implantation is measured accurately for a real transfer.
Does ERA delay my IVF treatment?
It adds one preparatory cycle, but this small delay can save you from another failed transfer — making the overall journey shorter and less stressful.
Do I need the ERA test in every cycle?
No. Once your personal window is identified, the result usually stays valid for future transfers, so the test isn’t repeated.
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