If an incomplete abortion occurs after a medical abortion, the damage to the uterine lining from another purging is more serious. Because after the drug abortion, the bleeding time is longer, if there is an incomplete abortion, usually after 10 days can be diagnosed. At this time, the lining of the uterus will be congested, edema and bacterial infection, and if the uterus is cleared again, it is easy to damage the lining of the uterus and cause adhesions in the uterine cavity. The damage of direct abortion is less than the removal of the uterus after medical abortion, because there is no inflammation or bacterial infection in the uterine cavity when abortion is performed, so it is very easy to suction the uterus at this time, and it is easy to suction out the embryo. The bleeding time after suction is shorter, and the damage to the uterine lining is also very light.