Blood sugar 9.2mmol / L if the fasting blood sugar, more serious, recommended lifestyle intervention and drug treatment; if the postprandial blood sugar, less serious, recommended to improve lifestyle first. 1. Normal fasting blood glucose should be <6.1mmol/l, when the fasting blood glucose is 9.2mmol/l, diabetes needs to be considered, and it is recommended to further improve diabetes related examinations to clarify the diagnosis. Lifestyle intervention, dietary control, appropriate exercise, regular review of blood glucose, if the blood glucose still does not meet the standard need to be given hypoglycemic drug therapy. 2. Normal people's 2-hour postprandial blood glucose should be <7.8mmol/l, if the 2-hour postprandial blood glucose is 9.2mmol/l, it is necessary to consider impaired glucose tolerance, it is recommended to control the diet, appropriate exercise, blood glucose monitoring, if the 2-hour postprandial blood glucose is still ≥7.8mmol/l, it is recommended to further improve the glucose tolerance test. Diabetes mellitus is a metabolic disease characterized by chronic elevation of blood glucose. If diagnosed with diabetes mellitus, a reasonable treatment plan should be formulated under the guidance of a doctor.