Ligation is less dangerous with an IUD than with an IUD. Women need to undergo ligation in the operating room, which is a relatively large operation and requires surgery under intravenous anesthesia. Patients need to bear the risks in two aspects during the operation: 1. surgical risks, they can choose open surgery or laparoscopic surgery according to their own situation, during both of them, there may be various risks such as hemorrhage and damage to the ureter, bladder and other adjacent trachea, pelvic infection or pelvic adhesions, etc. 2. patients need to bear the risks that may be brought by anesthesia, such as anesthesia too deep resulting in shock, anesthesia allergy, etc. The intrauterine device procedure is relatively small and can be performed in an outpatient operating room, and the patient does not need anesthetic drugs during the procedure. The procedure is performed through natural channels and does not require cutting through the woman’s body tissue, so it is very less invasive.