A reproductive disorder in which uterine tissue migrates and grows in the ovaries or fallopian tubes is called?

The condition in question, where uterine tissue grows outside of the uterus, typically on the ovaries, fallopian tubes, or other areas within the pelvis, is known as endometriosis. This disorder primarily affects women of reproductive age and can cause significant pain, particularly during menstruation, and may lead to fertility issues.

Endometriosis occurs when the tissue, similar to the lining of the uterus (the endometrium), begins to proliferate in areas where it should not be present. This aberrant growth can create adhesions and scar tissue, leading to various symptoms and complications. The symptoms can range from chronic pelvic pain to heavy bleeding, and the severity of the disease doesn't always correlate with the extent of the endometrial tissue growth.

In contrast to endometriosis, fibroids are non-cancerous growths in the uterus, ovarian cysts are fluid-filled sacs on the ovaries, and polycystic ovary syndrome is a hormonal disorder causing enlarged ovaries with small cysts on the outer edges. Each of these conditions presents differently and has distinct causes and treatments, which further emphasizes the specific nature of endometriosis among reproductive disorders.