It is normal for a woman to have a brownish discharge after her period has ended, possibly due to the residue of the last period. It may also be caused by irregular menstruation, endometrial disease or cervical disease. 1. Physiological factors If there is still a small amount of brown discharge after the end of menstruation, it may be that the last menstruation is not completely over and there is still a small amount of bleeding, but the bleeding does not flow out in time, and it is oxidized in the vagina and mixed with leukorrhea, resulting in brown discharge. 2. Pathological factors (1) Irregular menstruation: women who still have brown discharge after the end of menstruation may be caused by irregular menstruation. Patients may show irregular menstruation, which is manifested by the appearance of menstruation again soon after the end of the last menstruation. (2) Endometrial disease: Women who have brown vaginal discharge at the end of menstruation may have a small amount of uterine bleeding caused by diseases such as endometritis, endometrial polyps or endometrial cancer. (3) Cervical diseases: If a woman has a small amount of bleeding after the end of menstruation and after coitus or transvaginal operation, the bleeding is not discharged in time and is oxidized in the vagina, then brown discharge will appear. After the end of menstruation, there may be other causes of brown discharge, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.