Late menstrual brown discharge is considered to be related to abnormal luteal function, endometrial polyps and other diseases, treatment can be promoted through medication, surgical treatment and other ways to clean up. 1. Abnormal luteal function: If a woman’s corpus luteum is insufficiently functional or atrophic, the level of progesterone produced by it will be low, which will lead to the endometrium not being able to undergo a complete secretory phase and affect its peeling off, resulting in prolonged menstrual periods, etc. At this time, progesterone preparation or short-acting contraceptive pills can be used to adjust the menstrual cycle in accordance with the instructions of the doctor. 2. Endometrial polyps: for women with endometrial polyps, due to the presence of occupying lesions in the uterine cavity, so the patient to prolonged menstrual periods, irregular vaginal bleeding as the main manifestations, at this time can be prescribed the use of short-acting contraceptive pills in order to atrophy of the endometrium, if necessary, need to be in the hysteroscopy removal of polyps. For the late menstrual brown discharge can not be self-cleaning women, it is recommended that they go to a regular hospital gynecology clinic, improve ultrasound and other related examinations, to clarify the cause of the cause of the disease under the guidance of the doctor active treatment.