The most typical clinical symptom of incomplete abortion is prolonged vaginal bleeding, which may be accompanied by abnormal color and amount of bleeding. Under normal circumstances, after abortion surgery, vaginal bleeding can be cleared in 7-10 days, and the longest time will not exceed half a month. If the vaginal bleeding lasts for more than half a month, and the color of the vaginal bleeding is bright red, or the amount of bleeding is still heavy, the possibility of incomplete abortion should be considered. Therefore, it is recommended that patients should always have a repeat ultrasound around half a month after the abortion procedure. If the abortion is incomplete, medication or re-cleaning will be chosen according to the amount of residue. If the residue is relatively small, you can choose to use motherwort or uterotonin to promote uterine contraction, activate blood circulation and remove blood stasis, thus promoting the discharge of uterine residue; if the residue is more, you need to clear the uterus again for treatment.