It is generally recommended to review the ultrasound after one week or within half a month after a medical abortion. The majority of women can have a clean abortion, but a small number of women will need to undergo further surgical removal if there is any residue after the abortion. Whether or not there is vaginal bleeding or abdominal pain after a medical abortion, generally within a week or ten days after the medical abortion, patients are required to go to the hospital to review the ultrasound to see if there is any residue in the uterine cavity, because it is difficult to determine if the patient has been cleaned up if not reviewed. Although it is generally believed that a clean abortion is clean vaginal bleeding, if there is residue in the uterine cavity, incomplete abortion will generally have vaginal bleeding, but clinically there are some women who have no vaginal bleeding a few days after the abortion, and after a few days there is vaginal bleeding, repeated episodes of vaginal bleeding, some of this situation is caused by residue in the uterine cavity, and some of them are no uterine residue, caused by poor uterine contraction, for the residue of the uterine contraction of a small amount of treatment, such as uterotonin intramuscular injections. For the residual not much can be given to shrink the uterus treatment, such as contraction hormone muscle injection or traditional Chinese medicine biochemical soup plus reduction of oral and so on, if the residue is more, such as more than one centimeter, generally need to be promptly performed clearance surgery. In short, it is recommended to go to the hospital after one week or about ten days to review the ultrasound to see if the medicine is clean, to avoid incomplete abortion delayed clearance time, because the residual time of the residual tissue is easy to calcification and infection, to the later surgery to bring difficulties and risks.