The first is small trauma, body surface beauty. Small trauma includes two aspects, one is a small incision, generally in the abdomen to play 3-4 0.5-1.0cm small incision, to avoid the traditional surgery needs to be cut 10-20cm abdominal wall damage to the skin, subcutaneous tissue, muscle, etc., the difference in the appearance of the healing is obvious. On the other hand, there is little interference with the abdominal cavity. Since there are only a few operating forceps going in the abdominal cavity, there is little interference with the gastrointestinal tract, which helps prevent intestinal adhesions. As you know, it is difficult to prevent intestinal adhesion after abdominal surgery, and some adhesions cause repeated episodes of intestinal obstruction, and even multiple surgeries cannot solve the problem, which is very painful, so it is very important to prevent intestinal adhesion. Thirdly, due to the small incision, the postoperative pain is small, and you can get out of bed at an early stage, which also helps the recovery of intestinal function, shortens the hospitalization time, and reduces part of the hospitalization cost. Fourthly, intraoperative bleeding is less. Due to the magnifying effect of laparoscopy, blood vessels are more clearly recognized and not easily damaged, and the use of ultrasonic knife has a good hemostatic effect. Fifth, less side damage. Due to the magnifying effect of laparoscopy, small nerves, blood vessels and important organs such as the ureter can be seen more clearly, and the chance of injury is smaller.