Incomplete drug abortion mainly refers to incomplete drug abortion, the common reasons for incomplete abortion mainly include three aspects: 1, not strictly grasp the month of pregnancy, the time of taking the drug, precautions during taking the drug, such as taking the drug when the pregnancy is too short or more than 49 days, at this time taking the drug may cause incomplete abortion; 2, due to individual differences, different sensitivity to drugs, so the drug effect is not exactly the same; 3. Inflammation affects the contraction of the uterus, so that the meconium tissue and blood clots cannot be discharged and cause residual. The main manifestation of unclean abortion is vaginal bleeding with abdominal pain, sometimes intermittent small amount of bleeding, and sometimes increased bleeding. ultrasound examination of the uterine cavity without the complete structure of the pregnancy sac, replaced by strong echogenicity or mixed echogenicity, with or without blood flow signal. A review is usually performed about 1 week after the medication abortion to determine if the medication abortion is clean. If there is only a small amount of bruising it is recommended to take motherwort pellets or biochemical pellets. If conservative treatment is ineffective and ultrasound shows residuals, treatment of uterus removal should be performed under static antibiotics. At the same time, after the operation, it is recommended to rest, appropriate activities, avoid heavy physical labor, pay attention to personal hygiene, forbid to take a tub bath, avoid getting cold, and forbid to have sex for 1 month.