Endometrial receptivity (ERA) test – the same as endometrial receptivity analysis, which can be used to determine the receptivity of the mucosa of the uterus for embryo implantation, that is, to determine the most optimal period for embryo transfer,the so-called implementation window.

The implantation window is individual for different patients, this means that the days of embryo attachment are not fixed. With the help of this test, the days of embryo transfer can be planned in advance and it is particularly beneficial for patients who have experienced  several unsuccessful attempts to transfer good quality embryos.

Exactly in such cases, the ERA test is used, significantly increasing the chances of successful pregnancy.