An induced abortion requires removal of the uterus only if there are residuals after the abortion. Retained abortion is a disease in which the embryo or fetus has died and remains in the uterine cavity for several days or weeks or more before it can be expelled naturally. If an induced abortion occurs, it is necessary to go to the hospital as soon as possible for treatment, because an induced abortion for a long time will affect the patient’s blood clotting function, thus increasing the probability of postpartum hemorrhage. The uterus is less than 12 weeks, feasible scraping, the use of intraoperative uterotonin, the operation needs to avoid perforation of the uterus, if a time can not be scraped clean, 5-7 days later again scraping, the uterus is greater than 12 weeks of gestation, the use of mifepristone plus misoprostol, so that the fetus placenta expulsion, if the uterus has a residual tissue, usually need to be again cleared. If the embryo can be expelled intact, after a medication abortion with little vaginal bleeding, no abdominal pain, and a repeat ultrasound suggests that there is no residual tissue in the uterine cavity, then this case does not need to be cleared. Therefore, if you need to take medication for abortion, you should do so under the guidance of a doctor and avoid using medication on your own.