Diabetic patients with numbness of the tongue, may be cerebral ischemia or cerebral infarction, but also may be caused by long-term complications of diabetes damage to the nerves, need to seek medical attention in time to avoid delay in diagnosis and treatment. Diabetic patients who experience numbness of the tongue should seek prompt medical attention. If it is caused by cerebral ischemia, or cerebral infarction, it is a more serious situation, need to go to the hospital in time, under the guidance of the doctor as soon as possible diagnosis and treatment. In addition, diabetic patients with numbness of the tongue, may be the long-term poor control of blood sugar caused by diabetic neuropathy. Diabetic neuropathy can lead to abnormal sensation and numbness of the tongue. It is also necessary to go to the endocrinology department in time, adjust the glucose-lowering drugs, can use some nutritive nerve drugs for symptomatic treatment, such as methylcobalamin tablets. Other causes may also cause numbness of the tongue, diabetic patients with numbness of the tongue should go to the hospital in time to clarify the cause of the disease, under the guidance of the doctor for the cause of the treatment.