Diabetes, the chronic killer of human beings. According to WHO (World Health Organization) statistics in 2000, there are 175 million people with diabetes worldwide, with 100% complications ten years after the disease. For diabetes caused by an important factor, but because of obesity. Why is obesity easy to cause diabetes? Obesity causes diabetes mechanism Obese people mostly have insulin resistance in their bodies. Insulin resistance means that the efficiency of insulin in the human body to promote glucose uptake and utilization decreases, and because the role of insulin decreases, the body will compensate by secreting more insulin to play a role in lowering blood sugar. In addition, due to the obesity of body size, the workload of insulin to carry blood sugar is increased. What can be solved by 5 units of insulin in a meal for an ordinary person may have to be solved by 10 units of insulin for a fat person. In this way, due to the prolonged overload function of pancreatic B cells, it is easy to lead to impaired islet function and permanent hyperglycemia, i.e., the occurrence of type 2 diabetes. Gastric Diversion Surgery for Diabetes: Gastric Diversion Surgery was first used in bariatric surgery, and later it was found that the obese patients with type 2 diabetes improved their diabetes symptoms after the surgery. After several years of clinical practice, doctors unexpectedly found that this surgery could effectively treat diabetes, thus Gastric Diversion Surgery brought a new gospel to diabetic patients. ● In the United States, the American Diabetes Association (ADA), the world’s leading authority on diabetes treatment, officially included gastric diversion surgery (GBP) in the Diabetes Prevention and Control Guidelines, establishing it as a routine treatment for diabetes. ●In Europe, the 45th Annual Meeting of the European Society for the Study of Diabetes on September 29, 2009 confirmed that diabetes has become a surgically curable gastrointestinal disease. ● In China, the Chinese Medical Association, the Chinese Medical Association, the Chinese Center for Continuing Medical Education and other authoritative organizations have made gastric diversion surgery a key promotion program for three consecutive years. The unique feature of gastric diversion surgery is that it changes the physiological flow of food, which is accomplished through the steps of gastric blockage, gastrointestinal anastomosis, and enteroenteric anastomosis. After the surgery, the insulin resistance in the patient’s body is eliminated, and the way the food flows through after the surgery also promotes insulin secretion in the patient’s body, reduces apoptosis and proliferation of islet cells, restores islet function, and cures diabetes.