It is normal to have a small amount of bleeding after 13 days of abortion, such as spot bleeding or changing only 1-2 sanitary napkins a day and not soaking wet, which is a normal phenomenon. If the bleeding is relatively large, such as 2-4 hours completely wet a sanitary napkin, accompanied by fever, small stomach pain unbearable and other abnormal symptoms, is an abnormal phenomenon, there may be residual, or even postoperative infection, this situation needs to come to the hospital. If there is only spotting bleeding after abortion or short-acting oral contraceptives such as Yosmin and Dayin-35 are started on the same day after the operation, spotting bleeding on the 13th day after the operation is a normal phenomenon and can be left untreated.