When the color ultrasound examination after abortion suggests that the uterine cavity residue is large when it is necessary to clear the uterus again, you need to follow the doctor’s instructions to deal with. Abortion is the use of negative pressure suction equipment to terminate early pregnancy within 10 weeks of the surgical method, to be operated by a professional doctor, preoperative to clarify the intrauterine pregnancy, and to exclude acute reproductive tract infections and other contraindications. When the postoperative vaginal bleeding time is long, the amount of cases such as need to do ultrasound to understand the uterine recovery, when suggesting that there is a uterine residue and > 2cm need to be again cleared treatment. Because the uterine cavity residue after abortion for a long time, will increase the risk of bleeding, infection and so on, once the diagnosis is clear need to clear the uterus in a timely manner, and follow the doctor’s instructions to give metronidazole and other antibiotics to prevent infection. After the operation, we should also pay attention to keep the vulva clean, change the underwear, prohibit the basin bath and sexual life for 1 month, avoid exertion and strenuous exercise, and follow the doctor’s advice to review on time.