Diabetic patients with fasting blood glucose around 7.5mmol/L is serious and prone to diabetic complications. Diabetic patients should control fasting blood glucose between 4.4mmol/L and 7.0mmol/L, blood glucose 7.5mmol/L has exceeded the control target, control of blood glucose is not in the range is more likely to be complicated by a variety of infections, microvascular lesions, neurological lesions, diabetic foot and so on. If blood glucose exceeds 33.3mmol/L, it is easy to lead to hypertonic hyperglycemia syndrome. Therefore, it is necessary to follow the doctor’s instructions to use hypoglycemic drugs, such as insulin preparation, etc., appropriate exercise, and actively cooperate with the doctor’s treatment, so as to control the blood glucose within the normal range. And we should closely monitor the blood glucose, once there is any abnormality or discomfort, go to the hospital for treatment in time, so as to avoid delaying the condition.