If there is intrauterine residue from a medical abortion, relatively if it is greater than 1cm, it is recommended to perform a clearance procedure. In addition, if the residual tissue does not reach 1 cm, but there will be active bleeding and there will be a lot of bleeding, it is also necessary to give a clearance operation, otherwise it may lead to hemorrhagic shock due to a lot of bleeding. If dripping bleeding occurs, it may also lead to symptoms of infection and clearing surgery is recommended. Small residues without corresponding symptoms can be observed dynamically. Progesterone can be taken for about 20 days after the medical abortion and stopped for about five days in a row.