(1) Strict screening before the use of medication, including inquiring about the history of the disease, a general physical examination and gynecological examination, laboratory tests, such as urine pregnancy test, vaginal cleanliness, trichomoniasis and mycobacteria, blood and blood type, and ultrasound examination if necessary.

(2) The doctor explained in detail the method of taking the medicine, the efficacy of the medicine and the possible side effects, and asked for consent before using the medicine.

(3) Currently, the usual dose of mifepristone is 150-200 mg, which can be taken at once or in divided doses over 3 days. In the hospital on day 3, add a prostaglandin preparation: Cargometrine 1 mg placed intravaginally or misoprostol 60O micrograms orally. Observe for 6 hours in the hospital.

(4) monitoring of the abortion process: in addition to attention to blood pressure, pulse, side effects of drugs during the hospital observation, the urine and feces should be retained in a clean potty, and the presence of the fetal sac and its discharge time, the size of the fetal sac and the amount of bleeding should be examined by a person who will record the presence of the fetal sac and the time of discharge. If there is active bleeding before or after the expulsion of the fetal sac, the uterine contraction agent can be given or immediately stop bleeding by scraping the uterus.

(5) After 6 hours of observation, if the fetal sac is still not expelled and there is not much bleeding, you can go home and follow up according to the date set by the doctor. If the tissue is expelled at home, it must be brought to the doctor for inspection.