In the current situation in China, most people with type 2 diabetes are obese, and the degree of obesity varies. However, some people do not look obese, but still can not avoid the entanglement of diabetes, this is why? Many people think that only when obesity reaches a serious level is it possible to have various obesity-related diseases. In fact, not, everyday we judge a person’s obesity degree is mostly from the surface watch, according to the body shape to determine. In fact, this kind of judgment method is not strict, the human body fat in addition to the subcutaneous fat visible to the naked eye, and invisible visceral fat. Visceral fat itself exists mainly to store calories and protect the internal organs, but once too much visceral fat can cause hormonal imbalance and inflammatory substances, leading to an increased risk of chronic diseases and bringing many health problems to the body. Diabetes is one of the chronic diseases caused by metabolic flocculation. Therefore, some people do not have much subcutaneous fat, but too much visceral fat can also lead to diabetes. The various health risks associated with obesity are not new, and there is a better treatment, gastric bypass surgery. This procedure is designed to realign the body’s gastrointestinal tract to alter the amount of food and nutrients absorbed, and to treat the associated obesity complications while losing weight.