Brown discharge at the end of menstruation is not acceptable for vaginal insertion. At the end of menstruation, there is still a small amount of brown discharge, this time the menstruation has not been completely clean, it is not allowed to vaginal insertion of drugs. At this time, the cervix is still in the open state, belonging to the relaxation. At this time, vaginal pills may lead to vaginal inflammation and infection or upward infection. It is recommended to wait until the menstrual period is completely clean, and then carry out the drug vaginal plug treatment. Do not have intercourse at this time may also cause inflammation and infection. However, if the bleeding from the vagina does not stop, you should go to the obstetrics and gynecology department of the hospital in time to do ultrasound and other examinations. Cervical polyps, endometrial polyps and other causes of brown discharge, vaginal plug treatment may not be effective.