What is abnormal condition in which endometrial tissue grows in various areas in the pelvis cavity?

The abnormal condition in which endometrial tissue grows outside the uterus is known as endometriOSis. This tissue can develop on the ovaries, fallopian tubes, the outer surface of the uterus, and other organs within the pelvic cavity. EndometriOSis can cause pain, especially during menstruation, and may lead to infertility in some individuals. The exact cause of endometriOSis is still not fully understood, but factors like hormonal changes and immune system disorders may play a role.