The normal range of 2-hour postprandial blood glucose in pregnant women is 3.9-8.5 mmol/L, which is a diagnostic criterion. If the postprandial 2-hour blood glucose of pregnant women is ≥8.5 mmol/L, gestational diabetes should be considered. Of course, the 2-hour postprandial glucose here mainly refers to the 2-hour postprandial glucose in the glucose tolerance screening. In general, pregnant women should control the 2-hour postprandial blood glucose within the target value of 6.7mmol/L. Therefore, the normal range of 2-hour postprandial blood glucose for pregnant women depends on whether it is a diagnostic criterion or a control target. Pregnant women are more likely to have elevated postprandial blood glucose levels, so monitoring the 2-hour postprandial blood glucose is very necessary. If pregnant women have bad results in postprandial 2-hour blood glucose management, that is, the state of high blood glucose, they can manage from the following aspects: 1. control total calories: don’t exceed the daily total calories and ensure balanced nutrition; 2. small amount and many meals: pay attention to small amount and many meals when eating, don’t consume foods with excessive sugar content and high glycemic index, and try to avoid the appearance of postprandial hyperglycemia; 3. appropriate exercise: after meals, you can Carry out some exercises suitable for pregnant women, such as walking. For pregnant women, besides paying attention to the blood sugar of 2 hours after meal, we should also know the blood sugar level of 1 hour after meal in the glucose tolerance test, and the plasma glucose level of ≥10.0mmol/L of 1 hour after meal for pregnant women is also the standard for diagnosing gestational diabetes. It can be seen that the diagnostic criteria of postprandial glucose value for pregnant women are much stricter than those for normal people, mainly because once a pregnant woman has hyperglycemia, it will easily lead to some dangerous situations for the pregnant woman and the fetus in the womb. Firstly, hyperglycemia in pregnant women may lead to abnormal amniotic fluid volume, and also lead to fetal lung maturation disorders and fetal weight abnormalities in the late stage, such as giant babies and full-term low weight babies, so it is necessary for pregnant women to monitor their blood sugar and manage it well.