When it comes to surgical weight reduction, for many years people have a one-sided perception that they associate it with liposuction surgery, or even consider it to be the same surgery altogether, which can easily lead to a misunderstanding about weight loss. The first thing you need to know is that weight loss surgery is not the same as liposuction surgery. Liposuction surgery is one of the plastic and cosmetic surgery body sculpting procedures, the principle is to suck out the excess fat from a certain part of the body through the method of negative pressure attraction, in order to achieve the purpose of local slimming in a short period of time. Weight loss surgery is a medical procedure that uses medical-surgical means to reduce the weight of obese patients and change their metabolic functions by controlling intake and reducing absorption, so as to cure or alleviate their associated symptoms, such as overweight, high blood pressure, high blood lipids, diabetes and other associated diseases. One is the sleeve gastrectomy, which is often referred to as gastric reduction. The removal of two-thirds of the stomach does not change the physiological state of the gastrointestinal tract, does not interfere with the normal digestion and absorption of food, does not affect the absorption of vitamins and minerals, has fewer long-term side effects, and has a faster recovery. The other is gastric bypass surgery, which first divides the stomach into two parts, the smaller upper part and the larger lower part, and then truncates the small intestine and rearranges its position, changing the way food passes through the digestive tract, slowing down gastric emptying, shortening the small intestine, and reducing absorption. Compared with traditional treatment options, weight loss surgery is minimally invasive laparoscopic surgery, which is less invasive, faster recovery, and less risky. A large amount of literature reports: the effective medium and long-term satisfaction rate of weight reduction surgery is as high as 85%-97%, and it is the only long-term effective method for treating obesity. It fundamentally solves the problem of food intake and nutrient absorption, and not only reduces weight, but also treats a variety of metabolic diseases associated with obesity.