According to data, more than 100 million people in China are currently suffering from the disease. While the “army” of adults with diabetes is growing, the number of children and adolescents with diabetes is also quietly increasing. Diabetes is a chronic disease that occurs when the body cannot produce enough insulin or use insulin effectively, and is mainly divided into type 1 and type 2. The former is an autoimmune disease characterized by the destruction of insulin-producing cells and was once known as juvenile onset diabetes, most commonly in children and young adults; the latter is characterized by resistance to insulin and can also develop from childhood. The younger age of diabetes has become a trend in its development, and children of any age can become diabetic. In the past, the majority of juvenile diabetics were type 1 diabetics. type 1 diabetes is mostly related to congenital factors and is more common in females. In recent years, however, type 2 diabetes has become more prevalent in the adolescent population. Juvenile type 2 diabetes is by no means rare, let alone uncommon, accounting for more than 20% of all juvenile diabetes, and the incidence is growing much faster than type 1 diabetes. Type 2 diabetes is associated with obesity, lack of exercise, and excessive caloric intake. Some parents worry that their children do not have enough nutrition, so they can’t wait for their children to eat more and take a “duck-filling” approach to raising their children, which can lead to their children gaining weight, high blood sugar and triggering diabetes. Many of the insignificant drinks, snacks and cold drinks around us contain fructose. Epidemiological studies have found that fructose is also the “main culprit” of obesity and diabetes. The short-term impact of fructose intake on blood sugar is small, but it is easily metabolized by the liver into triglycerides in the liver and fat, long-term intake of large amounts of fructose is likely to lead to obesity, fatty liver, hypertension and insulin resistance, and ultimately lead to diabetes. In addition to fructose, many milk teas, cakes and snacks also contain a certain amount of hydrogenated vegetable oils, or trans fatty acids, which can also damage cardiovascular health when consumed regularly. In addition to high-calorie foods and hidden sugary foods, frequent consumption of high glycemic index foods also tends to quietly increase blood sugar. High glycemic index foods mean that they are digested and absorbed quickly by the stomach and intestines, which can cause a rapid rise in blood sugar. On the contrary, foods with low glycemic index are digested and absorbed slowly and do not easily cause a spike in blood sugar after meals. In addition, because the child is overweight and it is not convenient to do exercise, the child does not want to exercise, which leads to a vicious cycle that can also lead to diabetes. Many adolescent diabetics are embarrassed to inject insulin in front of their classmates during their studies due to insufficient knowledge of the disease and low self-esteem, which leads to poor blood sugar control. Therefore, both doctors and parents should pay attention to juvenile diabetes, and the main treatment principles focus on psychotherapy as well as education, followed by glucose-lowering drugs, reasonable diet structure, moderate exercise and good blood glucose monitoring and review, as well as prevention of hypoglycemia to achieve early detection and early treatment.