Endometriosis is defined as the presence of normal endometrial mucosa (glands and stroma) abnormally implanted in locations other than the uterine cavity (see the image below). Approximately 30-40% of women with endometriosis will be subfertile. Read about endometriosis symptoms, treatment, causes, surgery, pain and diagnosis. Endometriosis is the abnormal growth of endometrial cells outside the uterus. The most common symptom is pelvic pain. Learn about treatment, causes, 4 stages, surgery, pain, cancer/infertility risks, and diagnosis. Endometriosis happens when tissue similar to the lining of the uterus grows in other places in the body. Symptoms include pain, heavy bleeding during your period and infertility. There is no cure but there are treatments for symptoms. Overview Endometriosis is a complex disease that affects many women, globally from the onset of their first period (menarche) through menopause, regardless of ethnic origin or social status. Endometriosis can also affect transgender men and non-binary individuals who menstruate. In women with endometriosis , endometrium-like tissue (usually found only in the lining of the uterus) grows outside the uterus, causing inflammation and scar tissue formation.
