People with diabetes may experience hypoglycemia. Diabetic patients with impaired glucose metabolism in the body, the body’s glucose metabolism regulation ability is insufficient when hungry, it is more likely to occur hypoglycemia. And diabetic patients’ blood glucose fluctuates greatly, and when it falls rapidly from a high level, it is more likely to have obvious sympathetic excitation symptoms, which is a hypoglycemic reaction. Hypoglycemic reaction can occur if diabetic patients are treated with insulin secretagogue-like drugs or insulin, when the dosage is too large or when the amount of food is insufficient. Once the symptoms of hypoglycemia appear, sugar water or sugary food should be given in time. If the symptoms do not get better or aggravate significantly, it is recommended to consult a doctor in time and follow the doctor’s instructions to standardize the treatment.