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When to perform endometrial biopsy for ERA
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When to perform endometrial biopsy for ERA

The endometrial biopsy for the ERA test is easily performed during a gynecological consultation without the need for anesthesia or surgery. Using a cannula, the gynecologist will gently scrape the uterine fundus to obtain a portion of endometrial tissue.

The exact day to perform the biopsy is at the beginning of the supposed implantation window, on day LH+7. Specifically, this is 7 after the peak of the LH hormone triggers ovulation in the middle of the menstrual cycle.

By (gynecologist), MD, PhD (gynecologist), BSc, MSc (embryologist), BSc, MSc (embryologist) and (invitra staff).
Last Update: 11/06/2020