How is there brown secretion in premenstrual period to return a responsibility

There are several cases of brown secretions before menstruation. First, ovulation will occur before menstruation. Some people will experience slight bleeding during ovulation, which may continue until the next menstruation. After menstruation, there may be brown secretions due to menstrual congestion. Finally, such a situation may be because the uterine wall is thicker than the normal uterine wall, it will also show brown secretions before menstruation, or brown secretions caused by gynecological inflammation. It is recommended to go to a regular hospital for ultrasound examination and leucorrhea routine examination, and the doctor judges whether there is a disease for early treatment.