The time required for laparoscopy, depending on the condition, usually takes 1 to 3 hours, and in severe cases, it may reach more than 3 hours. Laparoscopy, if used to find the cause of the disease, including laparoscopic exploration, hysteroscopy and routine pathology, etc., the time required is about 1 hour, can be basically completed, and the patient will not have too much pain. If bleeding or severe adhesions are found during the laparoscopy, the time taken may be more and may reach 3 hours or even longer. Therefore, before laparoscopy, it is necessary to cooperate with the doctor to make adequate preoperative preparations, such as perfect non-invasive CT, magnetic resonance examination, etc. to assess the condition; preoperative bowel emptying; anesthesia preparation, and so on.