With good glycemic control of diabetes, the likelihood of complications decreases, but not necessarily without complications. Whether diabetic complications occur or not is related to the patient’s disease duration, age, blood glucose control, the presence of other concomitant diseases and many other factors, although good control of blood glucose can significantly reduce the probability of complications, but it is also possible to occur complications. If the duration of the disease is long, the age is older, and there are other accompanying diseases, such as hypertension, high blood cholesterol, gout, coronary heart disease, etc., the possibility of diabetic complications is relatively increased. In daily life, diabetic patients should develop good dietary habits, quit smoking and limit alcohol consumption, and should also ensure regular work and rest, appropriate exercise, and maintain normal weight and body shape. Diabetic patients should seek timely medical treatment and regular review.