A two-hour postprandial blood glucose of 7.3 mmol/L is usually normal. In normal people, fasting blood glucose is 3.9~6.1mmol/L, and two-hour postprandial blood glucose <7.8mmol/L, so two-hour postprandial blood glucose 7.3mmol/L is normal. Clinical diagnostic criteria for diabetes mellitus are diabetes mellitus symptoms, such as polydipsia, polyphagia, polyuria, weight loss, etc., coupled with random blood glucose ≥ 11.1 mmol/L; fasting blood glucose ≥ 7.0 mmol/L; glucose ≥ 11.1 mmol/L in 2 hours of glucose tolerance test. If the two-hour postprandial blood glucose 7.3mmol / L, but appeared to drink, eat, urinate, weight loss and other symptoms, it is recommended to promptly consult a doctor, improve the fasting blood glucose, glycated hemoglobin and other tests, to clarify whether there is diabetes. If abnormal blood glucose occurs, it is recommended to consult a hospital in time to make a clear diagnosis with the help of a doctor.