Failure to pass the one-hour glucose tolerance test during pregnancy requires a retest, and if the retest is still not passed, further tests need to be given. Glucose tolerance test is a very important test during pregnancy, can determine whether the pregnant woman has hypoglycemia and whether there is gestational diabetes, if the retest still did not pass, on behalf of the pregnant woman occurs hypoglycemia or gestational diabetes, need to actively take all kinds of ways to rectify, because gestational diabetes can be very serious consequences for the mother and the fetus. Pregnant women are very strict with their blood sugar, it is important for pregnant women to detect elevated blood sugar and to control it under the guidance of a doctor. If the blood sugar still can not be controlled through diet and exercise, it is necessary to apply insulin and other medications to control blood sugar as early as possible under the guidance of the doctor, and not to use the medication on their own, in order to avoid adverse consequences.