For something to become mainstream, it needs time to settle down and be recognized by the public. The traditional mainstream weight loss method of exercise and dieting has a long history and has become a deep-rooted impression of weight loss, and it is also the weight loss method that most “weight loss beginners” give priority to and choose to try. However, as times change, the world’s obese population has exploded, and China has become the country with the largest number of obese people in the world. People began to find that conventional weight loss methods could not meet the complex and diverse causes of obesity, and there were always people who lost in the diet and exercise weight loss process one after another like “the wave after the wave”. At this time, a surgical weight loss method different from the traditional weight loss methods began to receive the attention of the majority of obese people, that is, gastric bypass surgery. This surgery has more than 50 years of development history, in the United States every year more than 300,000 people receive surgery, in foreign countries has been one of the mainstream weight loss methods, and even the famous Maradona, Pavarotti also through this surgery to complete treatment. In China, gastric bypass surgery has been slow to start, and it has been more than 10 years in the making. At present, there are more than 10,000 surgical cases per year, and the rate of growth continues at 30% per year. Although there is a certain psychological resistance to surgery due to the traditional thinking of the Chinese people, according to the current rate of growth of surgical cases, gastric bypass surgery will gradually move towards the mainstream of weight loss. Gastric bypass surgery is a treatment focused on weight loss and glucose reduction, with no less than 500,000 people worldwide getting rid of severe obesity and type 2 diabetes through surgery each year.