When women suffer from endometriosis, the clinical manifestations can vary depending on the specific location of the ectopic endometrial tissue, but there are some commonalities. A major symptom is pain related to menstruation, such as dysmenorrhea. For example, ovarian chocolate cysts can cause progressively worsening dysmenorrhea and affect the amount of menstrual flow; issues like increased menstrual volume and prolonged menstrual periods can also occur, and some women may experience pain during intercourse. Endometriosis often leads to the occurrence of pelvic adhesions, so some women may also experience chronic pelvic pain. When endometrial tissue is located on the ovaries, it can affect normal ovulation and hormone secretion, leading to irregular menstrual cycles and infertility.