Diagnosis of endometrial receptivity and the embryo-endometrial dialog

The human endometrium is a complex tissue, predominantly composed of epithelial and stromal cells, that is cyclically and primarily regulated by steroid hormones (estrogens and progesterone). Endometrial receptivity is a self-limited period during which the endometrium transiently transforms to acquire the ability to receive a blastocyst and support implantation, a process that is mediated by immu…