Fasting blood glucose 4.8mmol/L is usually normal for pregnant women. The normal range of fasting blood glucose for ordinary people is 3.9-6.1mmol/L, while the normal value of fasting blood glucose for pregnant women is 3.1-5.1mmol/L, so fasting blood glucose 4.8mmol/L for pregnant women is normal. Pregnant women, as a special group, have more stringent requirements for blood glucose control. At 24-28 weeks of pregnancy, oral 75 grams of glucose tolerance test, when the fasting blood glucose reaches or exceeds 5.1mmol/L or 1 hour after oral glucose glucose glucose value reaches or exceeds 10.0mmol/L or 2 hours after oral glucose glucose glucose value reaches or exceeds 8.5mmol/L can be diagnosed as diabetes mellitus. Pregnant women should have routine medical checkups to perfect the glucose tolerance test, and abnormal blood glucose levels are recommended to seek prompt medical attention.