Diabetic patients with toothache should first clarify the cause of the toothache. If the toothache is triggered by high blood glucose in diabetic patients, they should consult the stomatology and endocrinology departments, and if it is a simple toothache, they should consult the stomatology department. Diabetic patients with poor glycemic control are susceptible to periodontal infectious diseases, such as periodontal abscess, gingivitis and so on. It is recommended to visit the dentist in a timely manner when symptoms of toothache occur. At the same time, it is necessary to consult the endocrinology department, under the guidance of the doctor to actively control blood sugar, adjust the type or dose of hypoglycemic drugs. If the patient is other causes of toothache, should be consulted in the stomatology department, under the guidance of stomatologists standardized treatment. If a diabetic patient has a toothache, he or she needs to consult a regular hospital in time, and under the guidance of a doctor, a suitable treatment plan should be formulated according to the specific situation.