A lot of attention has recently centered on the receptivity of the endometrium to the growing blastula. High-resolution ultrasonography is currently the imaging modality of choice, but measurement of endometrial thickness in only associated with successfully treatment outcome if ovarian stimulation includes gonadoptrophins. However, the ultrasonographic texture of the endometrium may have a greater prognostic value for implantation. The current literature is relatively unanimous that a “triple” layered appearance of the uterus is associated with a 23-42% pregnancy rate and that endometrium is unreceptive when iso-or hyperechoic rate and that endometrium is unreceptive when iso- or hyperechoic compared with myometrium.The success of embryonic implantation relies upon a prefect diaglogue between good quality embryos and a receptive endometrium factor that is affected during pharmacological treatment.