There are three mainstream surgical procedures for weight loss: laparoscopic gastric sleeve resection, laparoscopic gastric bypass surgery, and laparoscopic biliopancreatic bypass surgery. At this stage, the mainstream surgery is laparoscopic gastric sleeve resection and laparoscopic gastric bypass surgery, as follows: 1, laparoscopic gastric sleeve resection: through laparoscopic or robotic-assisted minimally invasive surgical procedures, the greater curvature side of the stomach is removed by about 80%, and the remaining 20% or so, such as the sleeve-shaped intestines and stomach as a digestive pathway, known as the gastric sleeve resection; 2, laparoscopic gastric bypass: the gastric bypass is a laparoscopic or robotic surgery into the abdominal cavity, and the gastric bypass is a laparoscopic or robotic surgery into the abdominal cavity. Laparoscopic or robotic surgery into the abdominal cavity, the stomach is divided into the proximal gastric capsule and distal gastric capsule, after separation of the distal small intestine away from the section, and then the distal section of the small intestine to the proximal gastric capsule or anastomosis, then the distal small intestine with the proximal small intestine anastomosis, the formation of gastric bypass or bypass surgery. The food that enters the body passes through the anastomosis between the intestines and the bowel and then meets the digestive juices, which prolongs the fusion of the digested food and the digestive juices. The two surgical procedures mentioned above are the most dominant surgical procedures available today, and both are accomplished through a minimally invasive approach.