With the name weight loss surgery, the most obvious result that seems to be achieved is undoubtedly weight loss. But why should you choose weight loss surgery to lose weight? What is the biggest difference between bariatric surgery and other weight loss methods? The two biggest features of bariatric surgery are the long-term effectiveness of the weight loss effect and the fact that bariatric surgery is not only able to lose weight, but also to treat a variety of metabolic diseases at the same time. The American medical journal Annals of Surgery published a paper on the effectiveness of bariatric surgery as early as 1995. According to a multi-year follow-up after surgery, after 14 years of bariatric surgery, patients were able to lose 50-60% of their excess weight, and the effect of weight loss was effective in the long term. There are a lot of literature reports: the medium and long-term effective satisfaction rate of weight loss surgery is as high as 85%~97%, and it has become the only long-term effective method to treat obesity, which fundamentally solves the problem of food intake and nutrient absorption. After the surgery, patients who have lost weight are able to maintain a healthy weight range steadily for a long time after the weight loss with the guidance of a health manager. Weight loss surgery can be more than just weight loss, it can effectively improve the metabolic indexes of many obesity associated morbidities. According to the analysis of clinical case data over the years, after receiving weight loss surgery, 80% of type 2 diabetes patients get complete remission, normal blood sugar and normal glycosylated hemoglobin after surgery, patients get rid of lifelong medication, 90% of fatty liver is improved; the mortality rate of obese patients is reduced by 89% in 5 years. Bariatric surgery can also effectively address and improve cardiovascular diseases. over 70% of patients with high blood lipids were improved, and over 78.5% of patients improved their hypertension symptoms. For polycystic ovary syndrome combined with obesity, weight loss surgery is one of the effective treatment options. In addition, sleep apnea, a terrible condition that tends to cause patients to die quietly in their sleep, can be even more effectively treated with weight loss surgery. In fact, patients who undergo bariatric surgery experience varying degrees of improvement in overall health, emotional and psychological well-being, physical and social functioning, pain relief, and personal energy recovery, with 95% significant improvement in quality of life and some increase in average life expectancy compared to medication.