Postprandial blood glucose usually refers to 2 hours postprandial blood glucose, and 2 hours postprandial blood glucose of 7.4mmol/L is normal. If the diabetic patient controls the postprandial 2-hour blood sugar at 7.4mmol/L, fasting blood sugar at 6.5-7.0mmol/L and glycated hemoglobin at about 6.3%, it indicates that the current sugar metabolism is normal. Patients can continue according to the current control method, do not arbitrarily increase the diet and reduce exercise, because diabetes is a lifelong disease, can only achieve clinical cure, can not reach the root of the cure. For women with gestational diabetes, a 2-hour postprandial glucose of 7.4 mmol/L is also normal, because a 2-hour postprandial glucose of <8.5 mmol/L is considered normal in women with gestational diabetes. However, if you are over 40 years old, have a family history of diabetes, and you have hypertension, coronary heart disease, hyperlipidemia, hyperuricemia, obesity, etc., you need to pay attention to the postprandial 2-hour blood glucose 7.4mmol/L, which has a higher probability of diabetes, and you should improve the examination, and you should have regular examination every year. If a single parent has diabetes, the risk of diabetes in children is four times higher than normal. If both parents have diabetes, the risk of children developing diabetes is 8 times higher than normal, and this becomes more pronounced the older you are.