Endometriosis, a disorder in which tissue resembling the lining of the uterus grows outside the uterus, can cause an endometrioma, a kind of ovarian cyst. When endometrial-like tissue adheres to the ovary and bleeds throughout monthly cycles, old blood progressively accumulates inside a sac, forming this cyst. Women between 25 and 40 years are more commonly diagnosed, especially those with long-standing pelvic pain. Early diagnosis of an endometrioma helps prevent complications, protect ovarian reserve, and reduce the risk of recurrence.<\/p>\n\n\n\n