Diabetes mellitus is an endocrine metabolic disease. Due to insufficient insulin secretion or insulin resistance resulting in increased blood glucose in the body, there is no cure, it is curable and incurable. The treatment of diabetes must be a comprehensive therapy: 1. strictly control the diet, that is, a light diet, avoid spicy, fried, sweet, greasy, stimulating food. 2. increase the amount of exercise, such as jogging, brisk walking, etc., and be consistent. 3. take oral hypoglycemic drugs or insulin injections on time. 4. receive diabetes health education. 5. regularly monitor and recheck blood sugar, glycated hemoglobin, etc., so that the indicators are controlled within the normal range. To prevent and delay the occurrence of complications and improve the quality of life of patients.