For people who are overweight and have reached severe morbid obesity, this operation will produce obvious weight loss effect without changing the physiological state of gastrointestinal tract and nutritional deficiency, and can reduce the overweight weight by 60%-70% within two years; Secondly, it can relieve obesity-related diseases, such as hypertension, coronary heart disease, diabetes (especially type 2 diabetes) and so on. This kind of operation is a good treatment, but not everyone can do it. There are many strict examinations before the operation to determine whether your body is capable of bearing the consequences of the operation. But for obese people, this kind of operation is not recommended. Because surgery is surgery after all, just like a three-point poison medicine, it will cause some harm to the body. If the postoperative recovery is not good, there may be intestinal dysfunction, nausea, vomiting, gastric acid reflux, heartburn, postoperative anastomotic bleeding, decreased immunity and other adverse phenomena, and even serious obesity rebound. To sum up, it is not recommended to blindly follow the trend to do gastrectomy to lose weight. For some well-known public figures, they may care more about their external image, so they want to lose weight and improve their external image through gastrectomy. However, if it is not morbid obesity or obesity that has a great impact on life, it is recommended to lose weight through a balanced diet and reasonable exercise. If you are not good at losing weight, you can consult a professional fitness coach for exercise, consult a professional dietitian for diet matching, or go to a doctor to match certain drugs to lose weight.