Fat people lose weight by diet and exercise, but very few of them can stick to it and are basically on the way back and forth to regain weight. So is sleeve gastrectomy surgery good for weight loss? Sleeve Gastrectomy: The full name is Laparoscopic Gastric Reduction Surgery, also known as Sleeve Gastrectomy (LaparoscopicSleeveGastrectomy), the principle of gastric reduction surgery is to use the laparoscope to cut out the large curve of the stomach vertically, so that the stomach forms a small gastric sac of about 150cc, which can accommodate about 4-5 ounces of food. It has the advantage of not requiring the placement of foreign objects in the body and the procedure is remarkably effective for weight loss. Method: 2-6 cm of the sinus above the pylorus is preserved in the direction of the greater curvature of the stomach, and the larger part of the stomach is removed along the long axis of the stomach, and the entire fundus is removed, leaving a “banana-shaped” stomach with a volume of about 60-80 ml. Principle: To reduce the volume of the stomach and decrease the secretion of hormones that stimulate the production of hunger. Advantages: It does not change the physiological state of the gastrointestinal tract and does not interfere with the normal process of digestion and absorption of food. Evaluation: Sleeve gastrectomy has a good therapeutic effect on type 2 diabetes and is a widely used surgery for weight reduction and diabetes in Europe at present. This surgery can reduce more than 70% of overweight weight in the first year after surgery, (about 60 pounds or more for 200 pounds, for example), and the remission rate of diabetes is more than 75%. Among the three, adjustable gastric banding for weight loss (LAGB) and diversion (By-pass), the treatment effect and postoperative complications are in the middle, so it is the most popular. Sleeve gastrectomy indications: Its indications: 1, obese patients with BMI greater than 32, or BMI greater than 28 but with type 2 diabetes, diabetic patients must have a certain residual function of the pancreas and c-peptide must be higher than half of the lowest value of the normal range. 2, obese patients with poor non-surgical results and those prone to rebound.