Whether or not a medical abortion can be performed without purging depends on how much residue is left behind; less residue can usually be left behind without purging first, and more residue needs to be purged. The drug flow through the oral medication to terminate pregnancy, oral medication is generally required to check the embryo and its appendages under the supervision of a doctor to discharge, such as excessive vaginal bleeding or incomplete abortion, depending on the bleeding situation and intrauterine residuals, to give the appropriate treatment, and if necessary, to give the removal of the uterus treatment. If there is a small amount of vaginal bleeding, the pregnancy has been basically discharged, and there is not much residue, oral medication can be taken to promote the discharge of the residue, and the gynecological ultrasound can be closely observed; if the bleeding increases, and it is difficult for the residue to be discharged, then the uterus can be purged. If the vaginal bleeding is more, the fetal sac is not discharged, and the residue is more, the uterus must be cleared for treatment. Drug abortion should be carried out in regular hospitals, under the guidance of specialists in the use of drugs, and closely observe the discharge of embryos.