Until now, there is no single method that can achieve a cure for all diabetes. As the number of people with diabetes rises, more and more people are feeling the malignant effects of diabetes on the human body. The discovery of gastric bypass surgery as a cure for diabetes was initially an unexpected one, and there is no shortage of modern medical research exploring ways to treat it. In the past, the pathogenesis of certain diseases was not even known, in addition to the low level of technology used to treat the disease in question. It was later discovered that diabetes is closely related to obesity, as evidenced by data from China, where the percentage of Chinese adults with diabetes is 10.6%, and 65% of them are overweight or obese. It is for this reason that gastric bypass surgery for diabetes is effective. The first premise we need to know is that gastric bypass surgery is mainly aimed at the treatment of obesity type 2 diabetes, and the connection between obesity and diabetes is mainly due to insulin resistance formed by abdominal fat, which leads to a weakened glucose metabolism in the body and thus causes diabetes. Gastric bypass surgery reduces the amount of sugar absorbed by the body from the root by reconstructing the intake of food for weight loss in the gastrointestinal tract, and at the same time changes the secretion of hormones in the intestine-islet axis, which can also reduce the amount of nutrient absorption to achieve the effect of weight loss. Once the body fat rate returns to normal levels, the above-mentioned effect of insulin resistance will decline and the function of glucose metabolism will be restored. Gastric bypass surgery breaks down the factors of obesity triggering type 2 diabetes one by one, so it is more effective in treating diabetes than the traditional taking of glucose-lowering drugs and insulin injections, and the dilemma of lifelong medication can generally be avoided after the surgery. However, this surgery requires a certain level of physical condition, so if you want to have the surgery to treat diabetes, you need to consult in advance about the surgery.