Pain in the abdomen accompanied by a bloody vaginal discharge, or a coffee-colored or brownish discharge, indicates an abnormality. For example, when there is an abnormal hormone level due to the effects of medication, such as oral emergency contraceptives, coffee-colored or even brown discharge may occur. When there are fibroids in the uterus, including endometrial hyperplasia, uneven echogenicity of the endometrium, and cervical canal polyps, abnormal bleeding may also occur. It can also cause pain and brown or coffee-colored discharge due to contraction of the uterus. Endocrine hormonal disorders, such as polycystic ovaries, including prolactinemia, can also cause bleeding and pain in the uterus when there are abnormalities in ovarian function. In such cases, it is important to go to the hospital for an ultrasound examination to determine if there are any abnormalities in the uterus, including both adnexa, and depending on the situation, medication should be administered.