The induced abortion drug mifepristone is a new antiprogestational hormone drug, mainly used for termination of pregnancy, but under the guidance of a doctor can only use the drug, not unauthorized use of the drug, so as not to cause serious consequences. This drug is mainly used for anti-early pregnancy, termination of pregnancy and fetal death intrauterine induction of labor surgery, but also for gynecological surgical operations, such as intrauterine device placement and removal or abnormal development of the cervical canal, by laser separation and cervical dilatation and curettage surgery, can be used mifepristone for the appropriate treatment, for the operation to bring a more convenient end. It must be used with caution, and in the case of termination of pregnancy, the drug should not be used to terminate pregnancy if the early and early pregnancy reactions are particularly severe and nausea and vomiting are particularly frequent.