Brown discharge before menstruation is often a manifestation of a woman’s premenstrual cycle. It is due to the endometrial lining shedding less and mixing with blood to form brown discharge, which is a normal physiological phenomenon and does not need to be treated. Some women in early pregnancy may show brown discharge before and after their past menstrual cycle, and patients are advised to use early pregnancy test paper to test whether they are pregnant. In addition, some diseases may also cause the symptoms of brown discharge before coming to the aunt: 1. cervicitis: if the patient has bacterial or viral infections that cause cervicitis, under the stimulation of inflammation, there may be bloody leucorrhea, which is manifested as brown discharge before coming to the aunt, and patients are advised to use antibiotic drugs, such as azithromycin, for treatment in time to relieve brown discharge before coming to the aunt; 2. The patient may have a cervical polyp that may cause abnormal shedding of the endometrium, leading to the symptoms of brown discharge before coming to the menstrual period. Patients can choose to have their polyps surgically removed to relieve the symptoms; 3. Luteinizing function abnormalities: In some patients, insufficient luteinizing hormone in the body causes abnormal luteinizing function, which affects the development and discharge of follicles during the menstrual cycle, resulting in the symptoms of brown discharge before menstruation. Patients are advised to supplement progesterone in time to avoid infertility; 4. IUD placement: When an IUD is first placed, brown discharge may occur, which may be caused by unsynchronized shedding of the endometrium. In general, it can be observed first and no special treatment is needed. If this continues for a long time, it is recommended to go to the hospital for examination to rule out abnormalities; 5. Pre-eclampsia: women of childbearing age who have had unprotected sex may have a pre-eclampsia or ectopic pregnancy in early pregnancy, and it is recommended to go to the hospital for blood HCG and ultrasound to rule out the situation. In addition, diseases such as uterine bleeding and uterine tumors may also cause patients to have symptoms of brown discharge before coming to menstruation. If the symptoms are more serious or accompanied by other symptoms, patients should go to a regular hospital for medical consultation to clarify the cause and treatment. In addition, from the perspective of Chinese medicine, brown discharge before menstruation may be caused by blood stasis. Patients can take some of the blood activating and stasis removing drugs, such as Blood Mansions and Stasis Pills, under the guidance of a doctor to promote the discharge of menstruation and improve the symptoms of brown discharge before menstruation.