The normal values of glucose tolerance in pregnant women are: fasting blood glucose <5.1mmol/L, one hour after taking 75g of glucose <10.0mmol/L, and two hours after taking 75g of glucose with a blood glucose value of <8.5mmol/L. Any abnormal blood glucose value can be diagnosed as gestational diabetes. Some people say, "Why did I get this disease when I didn't have diabetes before I got pregnant. Since the placental secretion of progesterone, estrogen and placental lactogen increases significantly from 24 to 28 weeks of pregnancy, all of these hormones have an antagonistic effect on insulin, and insulin resistance increases significantly by 32 to 34 weeks of pregnancy, these two time periods are very important to detect gestational diabetes. Therefore, routine glucose monitoring for pregnant women is scheduled to begin at 24~28 weeks, and if that screening is normal and risk factors for diabetes exist, such as advanced pregnancy, family history of diabetes, obesity, and having had a huge baby, you need to come back to the hospital at 32~34 weeks for another review. If you are diagnosed with gestational diabetes, treatment should follow the principle of "five horses", namely "diet, exercise, medication, blood glucose monitoring and diabetes education". It is recommended that you limit the intake of carbohydrates, high sugar and high fat foods in your diet and exercise daily. Diet therapy and exercise therapy are limited, because although it is not advisable to eat more every day, at least to meet the energy needs of the mother and child; and in terms of exercise, as the weeks of pregnancy increase, it is gradually difficult to move, at best, you can only do some low-intensity exercise such as walking. Therefore, in addition to proper diet control and exercise, pregnant "sugar moms" also need to take medication under the guidance of a doctor, and the only medication that can be used during pregnancy is insulin. Gestational diabetes blood glucose control targets: fasting, before meals and at bedtime.