Childhood diabetes is generally lifelong and cannot be cured, only able to control blood sugar levels through medication. The most common type of diabetes in children is type 1 diabetes, which is characterized by pancreatic β-cell failure. Once the β-cells fail irreversibly, there is usually an absolute lack of insulin secretion, and insulin therapy is required for the rest of one’s life. There are also a small number of children with type 2 diabetes. Because obesity causes a decrease in insulin sensitivity, the relative secretion of insulin is insufficient to cause diabetes. Only early detection, through the intervention of lifestyle behaviors, weight loss, in a certain period of time can be without drug treatment. However, with the extension of time, medication may eventually be needed to control blood glucose levels. When high blood glucose is detected in childhood, it is important to actively seek treatment at the local hospital and control the blood glucose well with long-term medication.