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Endometrial receptivity analysis (ERA) is a test that is used to determine the best time to transfer an embryo during an in vitro fertilization (IVF) program. The test involves taking a sample of endometrial tissue (lining of the uterus) from a woman on a specific day during her menstrual cycle. The sample is then analyzed to determine the genetic status of the endometrial cells and whether they are ready to receive an embryo. The results of this test will help the doctor to determine the right time to transfer the embryo, thereby increasing the chances of a successful pregnancy.
ERA can help women who have experienced implantation failure in an IVF program. In some cases, the endometrial cells may not be ready to receive an embryo, even if the embryo itself is healthy. By using ERA testing, doctors can determine the most suitable time for transfer, which can increase the chances of a successful pregnancy and reduce the number of failed embryo transfer attempts.