decidualization

Decidualization is a process that occurs in the uterus during early pregnancy, where specialized cells transform to prepare the lining for a potential embryo. This change involves the thickening, vascularization, and development of supportive tissue, creating a nourishing environment for the embryo to implant and grow. It's a crucial step for successful pregnancy, ensuring the uterus is receptive and able to sustain fetal development. This transformation is regulated by hormonal signals, mainly progesterone, and occurs specifically in the area of the uterus where the embryo may implant.