If the residual tissue is larger than 1cm after a medication abortion, it is recommended to perform an evacuation. In addition, clinically, it is not only based on the size of the residual tissue to decide to clear the uterus, but also depends on the patient’s clinical symptoms, if the residual tissue is relatively small, but the vaginal bleeding is relatively heavy, we should actively give the uterus to clear the operation, otherwise there may be too much bleeding and lead to hemorrhagic shock. If intrauterine tissue is found on the 7th or 10th day after medical abortion, the decision of whether to remove the tissue as soon as possible should be made based on a comprehensive analysis of the clinical history. In addition, after the medication abortion, if the amount of vaginal bleeding is greater than the amount of menstruation, or if there is pain in the lower abdomen, or if there is a strange odor in the secretion before the review, it is necessary to go to the hospital in time to give a follow-up examination, and it is necessary to do treatment.