Postprandial glucose is usually the blood glucose value measured 2 hours after a meal. Whether postprandial glucose 8.8 mmol/L is normal or not varies in criteria depending on the patient. In the case of a patient without a diagnosis of diabetes, a postprandial blood glucose of 8.8 mmol/L is abnormal but does not meet the diagnostic criteria for diabetes. The normal person’s blood sugar 2 hours after meal is 4.4-7.8mmol/L. If it is more than 7.8mmol/L and less than 11.1mmol/L, it belongs to reduced glucose tolerance, at this time, although the patient has not reached the degree of diabetes, it may turn into diabetes, thus it is necessary to control the diet, try to eat less food with high sugar and high fat, such as chocolate, pig’s feet, etc., and eat more dietary fiber-rich grains and cereals, such as soybeans, millet, etc., as well as exercise appropriately and pay attention to monitoring blood sugar. If the patient is a pregnant woman or young person with diabetes, a blood sugar of 8.8 mmol/L 2 hours after meal is considered to be high. Usually, it is more reasonable to have a blood sugar of 6.7mmol/L or less 2 hours after meal. However, if the diabetic patient is an elderly person, the value can be slightly relaxed to prevent hypoglycemia, and at this time, the 2-hour postprandial blood sugar of 8.8mmol/L can be regarded as normal. In daily life, in addition to medication, patients can keep their blood glucose in the normal range through diet and exercise, and follow the doctor’s instructions to review regularly to adjust the treatment plan.