Coffee-colored discharge after menstruation may be caused by endocrine disorders, gynecological diseases, abnormal birth control devices, etc. It is necessary to regulate the endocrine system, treat gynecological diseases or adjust the birth control device. Coffee-colored discharge is caused by a small amount of bleeding. When the patient’s body has abnormal estrogen secretion or abnormal luteal atrophy, resulting in irregular shedding of the uterine lining and coffee-colored discharge, it is necessary to use sex hormone drugs for treatment. If it is due to gynecological inflammation, uterine fibroids, cervical polyps that lead to the continuous secretion of coffee-colored material, the disease needs to be treated. In addition, abnormal positioning of the IUD can also cause abnormal bleeding, and the position of the IUD needs to be adjusted. Women who experience symptoms such as those listed above should seek medical attention for diagnosis and treatment.