It is normal to have blood clots after uterine evacuation, but it may also be due to abnormalities such as poor uterine regeneration or incomplete abortion, which need to be clearly judged after examination and treated accordingly according to the specific situation.1. Normal phenomenon: due to the opening of the surgical wound, a small amount of blood may exist in the uterine cavity and stay in the cavity for a period of time, and then coagulate to form a blood clot, which may be gradually discharged from the vagina, causing irregular vaginal The symptoms of irregular vaginal bleeding may occur, and other residual tissues in the patient’s uterine cavity may also be discharged through the vagina. Patients can perform appropriate activities after 5-6 hours after surgery according to their personal condition, which will help the discharge of the remaining blood in the uterine cavity. 2. Poor uterine rejuvenation: If the uterus does not contract well after surgery, it may cause bleeding, followed by clotting causing clots to appear. It is recommended to give drugs to promote contraction for treatment and apply antibiotics to prevent infection; 3. Incomplete miscarriage: if the uterus is not completely discharged, there is still embryonic tissue left in the uterine cavity, which may also cause bleeding and clotting. It is recommended to visit the hospital to clarify whether there is any residual embryonic tissue in the uterine cavity, and if necessary, treatment is needed again through the uterus removal surgery. In addition, after the operation, pay attention to avoid strenuous activities, rest more, pay attention to keep warm, maintain personal hygiene and sanitation, wash the vulva with water to keep the local area clean and dry to prevent bacterial breeding and infection, which can also prevent the occurrence of blood clots.