<prompt> True about endometriosis isareEndometrial sarcoma is most commonPremenstrual spotting absentMost common in 3rd or 4th decadeTrue cyst  <response>: Most common age group is between 30-45yearsAbnormal menstruation seen in 20Menorrhagia is seenIf the ovaries are also involved polymenorrhea, epimenorrhagia may be pronouncedMaybe premenstrual spotting seenMalignancy is rare, commonest being adenocarcinoma 