After abortion, it may lead to post-operative tubal incompetence or incompetence, resulting in infertility and affecting fertility; 3, menstrual disorders: some female patients may have failed medical abortion and need to undergo clearance surgery, which may easily damage the uterine lining. In addition, the drugs taken for abortion are likely to cause endocrine disorders in women, resulting in irregular menstrual cycles. After the operation, patients may experience reduced menstrual flow and uterine adhesions, leading to menstrual irregularities; 4. Intraoperative haemorrhage: improper operation may result in uterine damage and uterine perforation during the operation, causing excessive bleeding and easily triggering the adverse consequences of shock. Therefore, if there is no plan to prepare for pregnancy in the near future, attention should be paid to the adoption of safe and effective contraceptive measures when having sex. If you are sure to have an abortion, you should pay attention to rest after the operation, prohibit sexual intercourse and bathing for one month, and review the operation in a timely manner. A small amount of bleeding within two weeks after the operation is normal. If the bleeding exceeds the amount of menstruation, or is accompanied by abdominal pain or fever, you should seek medical attention promptly.