Endometriosis is a chronic condition that affects the tissue lining the uterus (the endometrium). In endometriosis, this tissue grows outside of the uterus and can attach to the ovaries, fallopian tubes, and other organs in the pelvis.

Polycystic ovarian syndrome (PCOS) is a common hormonal disorder that affects women of reproductive age. It is characterized by a hormonal imbalance.