Fasting blood glucose is normal and postprandial blood glucose is 10mmol/L, it depends on when it is measured after the meal, and also through the clinical manifestations and two hours postprandial blood glucose measurement to distinguish whether it is normal or impaired glucose tolerance or diabetes mellitus. If it is impaired glucose tolerance can be recovered through diet and exercise intervention, if it is diabetes mellitus should be treated with drug therapy, diet therapy, exercise therapy and so on. Impaired glucose tolerance is diagnosed when the patient has a fasting blood glucose <6.1 mmol/L and a 2-hour postprandial blood glucose of 7.8~11.1 mmol/L. At this time, strict dietary intervention as well as exercise therapy should be carried out. Diabetes mellitus can be diagnosed when the patient has polydipsia, polyphagia, polyuria, weight loss and random plasma glucose ≥11.1mmol/L or fasting blood glucose ≥7.0mmol/L or two-hour postprandial blood glucose ≥11.1mol/L. At this time, medication, diet and exercise should be treated at the same time. 1. Drug treatment: such as insulin, hypoglycemic drugs (such as metformin, pioglitazone, etc.), the doctor will choose the appropriate hypoglycemic drugs according to the patient's blood glucose, pancreatic islet function and body type. 2. Dietary treatment: diabetic patients should strictly control the total calories, eat small meals, eat high fiber foods, and eat a light diet. 3. Exercise therapy: diabetic patients should choose suitable exercise methods according to their condition, physical condition and working environment, such as cycling, swimming, walking, etc., but the intensity should not be too strong and the time too long. It is recommended to go to regular hospitals for timely examination and treatment under the guidance of doctors.