Chinese medicine cannot cure diabetes. Diabetes is a chronic disease, which is a metabolic disorder caused by insufficient relative or absolute secretion of insulin, or by increased activity of glucagon. If early prevention and control of high blood glucose, high blood pressure and high blood lipid can be strictly and permanently controlled with diet, exercise and medication, chronic complications can be significantly reduced and even reversed. If diet, exercise and medication are easily abandoned, blood glucose will rise rapidly, followed by gradual development of complications. Patients should treat regularly, should not easily give up diet, exercise and medication, monitor blood glucose frequently and adjust medication according to blood glucose in a timely manner, and should not believe that health care products and advertised medications on the market can cure diabetes without controlling diet, exercise and medication.