Meal two blood glucose should refer to two hours after meal blood glucose, for the normal population 4.8mmol / L is normal phenomenon, generally will not be hypoglycemic; for diabetic patients may occur hypoglycemia, especially the elderly or with serious underlying disease patients. For normal people, a two-hour postprandial blood glucose of 4.8 mmol/L is normal, and hypoglycemia is less likely to occur. However, if people with diabetes, postprandial blood glucose at 4.8mmol/L may occur hypoglycemia, especially for the elderly and patients with serious underlying diseases, the risk of hypoglycemia increases significantly, you can add meals appropriately, or consult the doctor to adjust the medication regimen. Since elderly diabetic patients have a high risk of hypoglycemia and are less able to perceive hypoglycemia, it is not easy to detect hypoglycemia when it occurs, so the blood glucose control target should be relaxed appropriately. When abnormal blood glucose or discomfort occurs, please consult the hospital in time and follow the doctor’s instructions to standardize the treatment so as not to delay the condition.