Bedtime blood glucose 5.8mmol / L in the morning to get up 7.6mmol / L, may be the dawn phenomenon or Sumuje reaction caused by the need to improve the relevant examination to determine whether the patient has diabetes mellitus. Under normal circumstances, the blood glucose measured in the morning before getting up and not eating can be regarded as fasting blood glucose. Fasting blood glucose 3.9-6.0mmol/L is normal, 6.1-6.9mmol/L is impaired fasting blood glucose regulation, ≥7.0mmol/L with diabetic symptoms can be diagnosed as diabetes. So when you wake up in the morning with blood glucose 7.6mmol/L, you should combine it with clinical manifestations and improve relevant examinations to clarify whether you have diabetes. Bedtime blood glucose 5.8mmol / L, while fasting blood glucose 7.6mmol / L, may be the dawn phenomenon or Sumuje reaction, need to monitor the nighttime blood glucose to identify, to determine whether there is a hypoglycemia caused by the early morning rebound blood glucose level increases. It is recommended that the patient should consult the endocrinology department of a regular hospital.