The normal menstrual cycle ends in 3-7 days. If there is also a coffee-colored discharge, or brownish discharge, for more than 11 days, it suggests an abnormality. There are more reasons for this: when there is endometrial hyperplasia, uneven echogenicity of the endometrium, endometrial polyps, submucosal fibroids, and interstitial fibroids, all may cause menstrual dripping and even brown discharge. When there are endocrine hormone abnormalities, staying up late, and changes in lifestyle habits, all may cause coffee-colored discharge to occur. When this happens, first of all, it is recommended to go to the hospital to register for gynecology, have a gynecological ultrasound to see what is going on in the uterus, and according to the situation, take oral anti-inflammatory and hemostatic drugs to help the uterus return to normal. It is recommended to take a blood test for endocrine hormones between the 2nd and 5th day of the next period to determine if there are any abnormalities and to perform manual cycle adjustment according to the situation in order to avoid such a situation from happening again.