1. Why do I need surgery for diabetes? In such a developed country as the United States, the efficiency rate of blood sugar control by medication alone is 50%, and the rate of lipid and hypertension control at the same time is only 18%, which means that most patients cannot effectively control diabetes and its complications. The control rate of obesity combined with type 2 diabetes is now 85% with the surgical treatment taken, especially adapted to patients with poor medication and insulin resistance. 2. Is the efficacy of surgical treatment of diabetes mellitus definite and stable? The results of Prof. Schauer’s study found that the clinical remission rate of diabetes after gastric diversion surgery and sleeve gastrectomy reached 85%, and the weight loss of patients after surgery led to the reduction of blood lipids and blood pressure, which played a positive role in improving cardiovascular and cerebrovascular system diseases. 3.How to choose the surgery method? Sleeve gastrectomy is suitable for cases of simple obesity or obesity combined with incipient diabetes, such as the 28-year-old patient who underwent the operation, with a history of diabetes for only 2 years; gastric diversion is suitable for obese patients with severe morbid obesity or metabolic complications such as diabetes, such as the 42-year-old patient who underwent the operation, with a history of diabetes for 11 years; biliopancreatic bypass has limited scope of application in China, and is only suitable for extremely severe morbid obesity or weight loss The second phase of surgery failed. 4. Is the surgical treatment safe? Comparing with foreign and domestic data, the overall comparison of the safety of several surgical methods is trustworthy, with a safety rate of 99%. The two patients who received the surgical treatment had stable vital signs after the operation, and they could get out of bed and eat liquid food the next day. The current indications for surgery that meet the characteristics of diabetic patients in China include: (1) BMI ≥ 27.5; (2) abdominal circumference (male) ≥ 90 cm, (female) ≥ 85 cm; (3) years of diabetes < 15 years; (4) 2h postprandial blood C-peptide > 2 times fasting C-peptide; (5) 2h postprandial blood insulin > 3 times fasting blood insulin; (6) except for endocrine causes of obesity; (7) patients without psychological disease or effective control of psychological disease.