The ultimate goal of metabolic correction surgery (formerly called gastric diversion surgery) for diabetes is to achieve the goal of maintaining blood sugar in the normal range without medication and insulin, and ultimately preventing diabetic complications. However, to reach such a goal, there are also many conditions that are needed, otherwise, the results of the surgery will not be good. First, there must be a sound and well-developed surgical mechanism. Because surgery has strict indications and contraindications, this requires strict preoperative gate-keeping, a comprehensive examination of the body, only the best place to solve the risk, can not be solved is determined not to do surgery for the patient, because the risk of doing so is relatively large, the health damage is greater. Second, the main surgeon must have extensive clinical experience. It can be said that the surgery has developed exceptionally fast in recent years, and many hospitals have started to carry out this surgery for weight reduction or sugar reduction. However, we suggest that before choosing a patient, it is best to understand more from several aspects before making the final choice, such as the cases carried out by the doctor, the level of the doctor, the hospital’s equipment, etc. These are all related to the effectiveness of the surgery, which is one of the reasons why the results of the surgery in different areas of the country vary. Third, the post-operative rehabilitation management mechanism. Doing surgery is not the end, post-operative rehabilitation is particularly important to the effect of surgery. In the cases carried out by our Central Plains Weight Loss and Sugar Reduction Center, we have professional rehabilitation teachers to guide the patients’ post-operative diet and living habits to ensure that the surgery can be performed to the best effect and be effective in the long run. If the patient does not cooperate with the program and content developed by the hospital after surgery, the effect will definitely be different. Therefore, if you want to have a surgical treatment, you must have a comprehensive understanding of the surgery and do a strict pre-operative examination and evaluation before a professional doctor develops a detailed surgical plan and parameters. If you do not meet the conditions, you are advised not to do the surgery.