When it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows to the uterine lining a process referred to as implantation. Undescended testicles. In some males, through fetal development one particular or each testicles are unsuccessful to descend from the abdomen in the sac that normally incorporates https://dralpersismanoglu.com/en/tag/what-are-the-dark-side-of-ivf/