There are several reasons for the brown discharge: First, it may be the upcoming menstruation, many women will soon come to menstruation due to a small amount of endometrial shedding, so there may be brown discharge, is a normal situation. Second, for women who have sex, may be the symptoms of pre-eclampsia abortion, after intercourse may be pregnant, if the embryo development is unstable may appear pre-eclampsia abortion, thus producing brown discharge, it is best to go to the hospital in time for examination, and then do a good job related to fetal preservation treatment. Third, consider the problem of ovulatory bleeding or other gynecological diseases, such as cervicitis, endometritis or gynecological tumors, etc. It is recommended to check according to your actual situation to see if there is a disease reaction, and if there is a disease, it is best to treat it in time.