Brown discharge after drug abortion may be the discharge of embryonic tissue, or it may be caused by blood stagnation, infection in the uterine cavity, or lack of uterine contraction. 1. Discharge of embryonic tissues: the discharge of embryonic tissues after medication abortion can last for 7~10 days, more than 15 days may be caused by incomplete abortion. 2. Blood stagnation: after medication abortion, there may be a small amount of blood stagnation in the uterus or vagina, the stagnation time is too long leading to oxidation of the blood, so that the blood becomes brown. So there will be brown discharge after abortion. 3. Intrauterine infection: If you don’t take good care of yourself after a medication abortion, it may cause an intrauterine infection and generate inflammatory secretions. This condition will also produce brown discharge, often accompanied by fever, lower abdominal pain and other symptoms. 4. weak uterine contraction: after abortion without the use of uterotonin drugs will make the uterus recovery is not good, caused by weak uterine contraction, there will also be brown discharge. It is recommended that patients go to the hospital for regular checkups after a medication abortion, and if there is any discomfort, it is recommended that they consult a doctor in time.