Pregnant women who fail the glucose tolerance test need to be retested a second time. Glucose tolerance, i.e. oral glucose tolerance test, is conducted during pregnancy mainly to screen whether pregnant women have gestational diabetes, so as to avoid the adverse effects of high blood glucose on pregnant women and fetuses, such as macrosomia and fetal malformations, etc. Usually at 24 to 28 weeks of pregnancy, pregnant women need to complete the glucose tolerance test. Usually at 24 weeks to 28 weeks of pregnancy, pregnant women need to complete the glucose tolerance test, if the fasting blood glucose is more than 7mmol/L or blood glucose after 2 hours of oral glucose is more than 11.1mmol/L, it is considered that there is an abnormal glucose tolerance, and if necessary, it can be checked for glycated hemoglobin. If the glucose tolerance is not passed during pregnancy, it is necessary to regulate the diet and control the sugar intake, such as fruits, rice, etc., and may follow the doctor’s instructions to exercise appropriately. Treatment review under the guidance of the doctor.