ERA Testing: Scientifically Determine When Your Uterus Is Most Ready for Embryo Transfer
Endometrial Receptivity Analysis (ERA) identifies, at the molecular level, the precise time window during which the uterine lining (endometrium) is most receptive to embryo implantation — known as the 'window of implantation.'
In short: even a genetically healthy embryo may fail to implant if the transfer timing doesn't align with the uterus's receptivity window; ERA testing determines this timing specifically for you.
What Is Endometrial Receptivity Analysis (ERA)?
In standard IVF protocols, embryo transfer is scheduled within an average time window suitable for most women. However, in some women, the window of implantation may be shifted from this average — a factor that can lead to recurrent implantation failure even with genetically normal embryos.
ERA testing examines the expression profile of thousands of genes in a sample of endometrial tissue to determine your uterus's receptivity status (receptive, pre-receptive, or post-receptive) at the molecular level, giving the embryology team a personalized, optimal transfer timing.
How Does the ERA Testing Process Work?
• In a natural or hormone-replacement cycle, a small endometrial tissue sample (biopsy) is taken at a time corresponding to the planned transfer day.
• The sample is sent for molecular genetic analysis.
• The expression profile of thousands of genes is examined to determine the endometrium's receptivity status.
• Based on the results, a personalized optimal transfer timing is recommended for the next cycle.
• The clinical team integrates this finding into your IVF protocol and adjusts the transfer plan accordingly.
Who Should Consider ERA Testing?
ERA testing offers meaningful value for women experiencing recurrent implantation failure despite the transfer of genetically normal (euploid) embryos; those with a history of multiple failed IVF cycles; and any patient who wants to personalize transfer timing to improve their chances of success.
Expected Clinical Outcomes
• Identification of the precise window of implantation for embryo transfer
• A personalized, optimal embryo transfer timing plan
• Insight into potential causes of recurrent implantation failure
• Optimized uterine-embryo compatibility and improved pregnancy success rates
Why Choose Turkey for This Service?
Turkey's reproductive health centers integrate advanced molecular tests like ERA into a cohesive IVF protocol, supported by experienced reproductive endocrinology and embryology teams.
• A clear cost advantage compared to similar testing in the US and Western Europe
• Endometrial biopsy and genetic analysis coordinated within a single center
• Experienced, multidisciplinary clinical approach for recurrent implantation failure cases
• Fast analysis and reporting so your next treatment cycle can proceed without delay
• Comprehensive health tourism and treatment coordination support for international patients
Frequently Asked Questions (FAQ)
When is ERA testing performed?
The test is performed during a trial cycle prior to the actual embryo transfer, with an endometrial biopsy timed to correspond to the planned transfer day.
Is ERA testing recommended for every IVF patient?
No. ERA testing is specifically recommended for patients experiencing implantation failure despite the transfer of genetically normal embryos, or those with a history of recurrent failed cycles.
What happens if the result is 'pre-receptive' or 'post-receptive'?
In that case, the embryology team reschedules the transfer timing in the next cycle, shifting it by a few hours or days to align with the endometrium's true receptive window.
Is the ERA test painful?
The endometrial biopsy is a brief procedure performed during a gynecological exam, typically causing mild discomfort; patients can usually return to daily activities shortly afterward.
How long do I need to stay in Turkey for this test?
The biopsy procedure can be completed in a single day; once results are ready, the next transfer cycle can be planned as a separate trip.
This content is for informational purposes only; it does not diagnose, recommend treatment, or guarantee results. Be sure to consult a doctor for a personalized evaluation.