In the past, people were afraid that obesity would affect their aesthetics, but now that medical technology is more developed, people have uncovered the potential dangers behind obesity and have to worry a little more about their health in addition to fearing that it will affect their aesthetics. With regard to obesity, it is important to mention the common chronic killer – diabetes. Nowadays, diabetes is no longer a disease of the elderly, but due to the younger age of obesity, diabetes has emerged clinically in adolescent groups. Although the number of cases of juvenile diabetes is not high in the known data for the time being, the most worrying trend is the younger age of obesity. At this age, adolescents are already under intense academic and social pressure, and if they suffer from serious obesity at this time, they need to take time out from their studies to insist on losing weight, after all, weight loss is not something that happens overnight, and this will undoubtedly add more pressure to them in the long run. Regardless of the stage of the person, once they suffer from diabetes, they will need to take drugs and injections to control their blood sugar for the rest of their lives. From oral medication to insulin, this long-term medication process is not the way to go after all. Therefore, diabetes surgery becomes a more suitable treatment for diabetes at this time. Sleeve gastrectomy is also one of the surgical ways to treat diabetes. It is a method to control food intake by cutting off a part of the stomach, which can effectively reduce the weight and well help the body to establish good eating habits and get rid of obesity from now on. In this process, if the body is already suffering from type 2 diabetes caused by obesity, the diabetes condition will be better improved at the same time as the gastric excision surgery to treat obesity.