Since there is no intrauterine operation, the embryo, mucosa and other tissues need to be discharged gradually with the contraction and recovery of the uterus after the procedure, and there may be prolonged bleeding and a small amount of residue that cannot be discharged in time. If there are still residual tissues in the uterine cavity after 2 weeks of postoperative review, timely measures should be taken to promote the discharge of residues. 1, oral medication: such as postpartum capsule, five plus biochemical capsule, etc., can promote uterine contraction, to promote the discharge of residues; 2, injection of contraction: intravenous infusion or intramuscular injection of contraction can also make the uterus contraction, so that the residual tissue as soon as possible; 3, clearance surgery: if conservative treatment is not effective, can be applied under the static point antibiotics to clear the uterus surgery treatment. If the uterus is not cleared in time, the residual tissue will affect the contraction of the uterus, leading to increased bleeding, increasing the chance of infection and even leading to infertility.