The conditions of medication abortion are as follows: 1, the pregnancy time can not exceed 49 days to ultrasound examination shall prevail. 2, the patient’s age can not exceed 40 years old. 3, must ultrasound diagnosis is inside the uterus pregnancy and the maximum diameter of the gestational sac should be ≤ 2.5 cm. In addition, if the ring pregnant women can not do medication abortion, if long-term use of drugs, such as the treatment of tuberculosis, epilepsy and depression medication, etc., then can not be medication abortion. . In addition, if the patient has high blood pressure, asthma, epilepsy, allergies can not be drug abortion, if the woman is very serious vomiting during early pregnancy can not take drug abortion, because after taking the drug is easy to vomit and affect the effect of drugs.