After the occurrence of hypoglycemia in diabetic patients, mild to moderate hypoglycemia can be relieved by taking oral sugar water, sugary drinks, or eating candies, cookies and bread. For drug-related hypoglycemia, the relevant drugs should be discontinued promptly. Patients with severe and suspected hypoglycemic coma should be given intravenous glucose promptly. Tremor, palpitations, and anxiety, as well as autonomic hypoglycemic symptoms such as sweating, hunger, and sensory abnormalities, and cerebral neuronal hypoglycemic symptoms such as cognitive impairment, behavioral changes, and psychomotor abnormalities, can occur when hypoglycemia occurs in patients with diabetes mellitus. When hypoglycemia occurs in diabetic patients during medication, they should go to the hospital in time and cooperate with the doctor for active treatment.