The normal value of 2-hour postprandial fingertip blood of pregnant women is 4.1-6.7mmol/L, and blood sugar needs to be strictly controlled during pregnancy. During pregnancy, if a pregnant woman’s blood sugar is unstable, it will easily affect the growth and development of the fetus, such as the emergence of a huge baby or the development of the lungs is affected by the emergence of respiratory distress syndrome and so on. Therefore, if a pregnant woman has high blood glucose, she must actively control her blood glucose, receive timely treatment, adjust her dietary structure, such as not to gluttony at night, moderate activity under the guidance of the doctor, and inject insulin if necessary. If only measured 2 hours after a meal once blood glucose is not enough to diagnose gestational diabetes, mainly under the guidance of the doctor through the blood test, glucose tolerance test and glycated hemoglobin test two ways, so you should go to the hospital in a timely manner.