Obese women have a question about what the requirements for surgery really are. How much weight do I have to meet the requirements to lose weight? Gastrectomy for Weight Loss: Fully known as Laparoscopic Gastric Reduction Surgery, also known as Sleeve Gastrectomy, Gastric Reduction Surgery is based on the principle of using a laparoscope to cut out the greater curvature of the stomach vertically, so that the stomach creates a small gastric sac of about 150cc, which can hold about 4-5 ounces of food. It has the advantage of not requiring the placement of foreign objects in the body, and the surgery is highly effective in weight loss. Method: Preserve 2-6cm of the gastric antrum above the pylorus in the direction of the greater curvature of the stomach, resect the large part of the stomach along the long axis of the stomach, and resect all of the fundus of the stomach, so that the remaining stomach is in the shape of a banana, with a volume of about 60-80ml. Principle: Reduce the volume of the stomach and decrease the secretion of hormones that stimulate hunger. Advantage: It does not change the physiological state of the gastrointestinal tract and does not interfere with the normal digestion and absorption of food. How much weight can I have my stomach cut? Those who have one of the following 1~5 can be considered for gastrectomy surgical treatment; 1. Simple obesity with BMI>32kg/m2 is recommended for weight reduction surgery; 2. Age 16 to 65; no other contraindications for abdominal surgery, etc.; 3. When the waist circumference of men is >90cm and women’s waist circumference is >80cm, the level of surgical recommendation can be increased as appropriate; 4. More than five consecutive years of steady or stable increase in body weight, with a BMI ≥ 32kg/m2; 5. Confirmation of obesity-related metabolic disorder syndromes, such as type 2 diabetes mellitus, fatty liver, cardiovascular disease, hyperglycemia, hyperlipidemia, hypertension, and sleep whistle pause syndrome, etc., and prediction that weight loss can be effectively treated.