Diabetes in children does not affect life expectancy as long as blood sugar is well controlled. Most children with diabetes are type 1 diabetic. Type 1 diabetes is caused by the failure of pancreatic beta cells and therefore requires insulin therapy throughout life. A small percentage of obese children with a family history of diabetes can also develop type 2 diabetes. Diabetes in children, whether type 1 or type 2, does not affect life expectancy as long as there is good long-term control of blood glucose. Children with diabetes should do the following: 1. Adhere to the diabetic diet and exercise therapy, both to ensure normal growth and development of children and to ensure total caloric intake, but also to help blood glucose control. 2. Insulin therapy. Children with type 1 diabetes need lifelong insulin therapy, and children with type 2 diabetes, in most cases, also need insulin therapy. Patients are not advised to stop using insulin without authorization to avoid diabetic ketoacidosis, a serious diabetic ketoacidosis is the main acute complication affecting the life expectancy of children with diabetes.3. Blood glucose should be reviewed regularly during the course of treatment to ensure good control of blood glucose in order to delay the generation and development of various chronic complications such as diabetic nephropathy, which is the main chronic complication affecting the life expectancy of children with diabetes .