Fasting blood glucose 8.5mmol / L, with diabetes symptoms can be diagnosed with diabetes, need to adhere to the treatment, can control blood glucose stabilization; 2 hours after the meal blood glucose 8.5mmol / L for impaired glucose tolerance, belongs to the pre-diabetic period, there is a possibility of returning to normal; random blood glucose 8.5mmol / L may be normal, need to further improve the examination. 1. Fasting blood glucose 8.5mmol/L: diabetes can be diagnosed when fasting blood glucose ≥ 7.0mmol/L and diabetic symptoms occur. If the diagnosis of diabetes is confirmed, there is no cure at present, and it is necessary for the doctor to formulate a treatment plan to control the blood sugar steadily, and it is necessary to insist on long-term treatment. 2. 2-hour postprandial blood glucose 8.5mmol/L: the normal range of 2-hour postprandial blood glucose is less than 7.8mmol/L, blood glucose 8.5mmol/L belongs to impaired glucose tolerance, but does not meet the diagnostic criteria for diabetes mellitus (≥11.1mmol/L), belongs to the pre-diabetes stage, timely intervention may return to normal. 3. Random blood glucose 8.5mmol/L: does not meet the diagnostic criteria for diabetes mellitus (≥11.1mmol/L), but can not be excluded from the abnormality, it is recommended to improve the relevant examinations. It is recommended that blood glucose 8.5mmol/L should go to the hospital in time.