Weight loss surgery to control weight and treat metabolic syndrome such as obesity and diabetes has become the consensus of the medical community and is accepted by the majority of obese diabetic patients. Liang Hui, Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University There are more and more ways of bariatric surgery, but at present, the most frequently used are laparoscopic gastric bypass and sleeve gastrectomy, many friends tend to be preconceived when they consult and identify one type of surgery. Family history of stomach cancer, etc., as well as your own acceptance of gastric resection, etc. Gastric bypass surgery has been the gold standard for weight loss and metabolic surgery because of its reliable weight loss results and almost all complications can be prevented, being able to reduce 60-70% of excess body weight, and the relief of type 2 diabetes can reach about 80%. In addition, the operation leaves the distal stomach open, so it is difficult to examine the open stomach after the operation, and gastroscopy cannot be performed. Sleeve gastrectomy has recently become more and more popular among surgeons because of its relative simplicity and the fact that the continuity of the digestive tract is not altered after surgery. Since simple sleeve gastrectomy does not reduce absorption, the effect of weight loss is lower than that of gastric bypass surgery. Therefore, based on sleeve gastrectomy, we carry out some improved surgeries for open intestine to reduce absorption, thus avoiding the complications of gastric bypass and achieving a controlled diet with reduced absorption, such as: jejuno-jejunal short circuit, duodeno-jejunal short circuit, etc. Therefore, before you choose these two surgeries, please look at your answer to the following questions: 1. How much do you wish to lose? 2, Are you extremely obese? 3, Do you have diabetes? 4.Does your family have a history of stomach cancer and other diseases? 5.Can you receive regular follow-up visits from us and take your vitamins on time? 6.Do you have any special requirements? 7.Does your doctor do every type of surgery?