15 days after the drug abortion and menstruation is an abnormal phenomenon, may be due to the drug abortion is not clean caused by the uterine cavity residue, bleeding after the activity and mistaken for menstruation. So in this case, it is recommended to go to the hospital in time for ultrasound review, to understand the uterus and the lining of the situation, if there is a residual uterine cavity in time to carry out the removal of the uterus. Because 15 days after the drug abortion is relatively long, and then take the drug is difficult to remove the residue in the uterine cavity, so it is better to take the surgical way to remove the residual tissue in the uterine cavity. After the operation, we should routinely give anti-inflammatory and hemostatic drugs orally, and pay attention to rest.