For the general population, blood glucose 5.8mmol/L is normal; for pregnant women, 5.8mmol/L is abnormal if it is fasting blood glucose. 1. General population: the normal range of fasting blood glucose for normal people is 3.9-6.1mmol/L, and the blood glucose two hours after meal is lower than 7.8mmol/L. Therefore, blood glucose 5.8mmol/L is normal no matter whether it is fasting or postprandial blood glucose. 2. Pregnant women: Pregnant women, fasting blood glucose greater than or equal to 5.1mmol / L, postprandial blood glucose greater than or equal to 8.5mmol / L, considering the possibility of gestational diabetes, so if pregnant women fasting blood glucose 5.8mmol / L, suggesting that the blood glucose is on the high side. If a pregnant woman has a fasting blood sugar of 5.8mmol/L, she needs to go to the hospital in time for examination and treatment under the guidance of a doctor.