After treatment, the blood sugar of diabetic patients still cannot come down. There are several possibilities for this situation: First, the patient does not strictly control diet and exercise, because diet and control of exercise are the basis of the whole treatment of diabetes, and if these two tasks are not done well, it is also very difficult for blood sugar to come down. So for this kind of patients should still control the diet strictly and exercise properly after meals to see if the blood sugar can drop. The second kind, on the basis of better diet control and exercise, if the blood sugar still can’t come down after taking oral hypoglycemic drugs, you can consider combining other kinds of hypoglycemic drugs to carry out hypoglycemic treatment, which may have certain effect. Another situation is that the effect of several oral hypoglycemic drugs is not good, it is necessary to consider the use of insulin treatment, insulin is currently a relatively fast role of blood glucose lowering drugs.