Glycated hemoglobin 6.3 in pregnant women may be a little high, there is a risk of high blood sugar, whether it is serious or not needs to be viewed in conjunction with the state of the pregnant woman herself. Glycated hemoglobin refers to the product of combining glucose in the blood, and the normal standard is 4.0-6.0. It is mainly used to diagnose diabetes during pregnancy and to assess the blood glucose in the body in the last trimester, and also to understand the control of blood glucose. A high glycosylated hemoglobin of 6.3 during pregnancy requires an OGTT test to determine if you have diabetes. If abnormalities in blood glucose are found during pregnancy, timely medical attention is needed, and timely intervention and targeted treatment is required according to the OGTT blood glucose values and on the doctor’s advice to minimize the impact of the disease. Glycated hemoglobin 6.3 of pregnant women is a little high, need further examination to exclude diabetes. It is recommended that pregnant women pay more attention to regulating their diet and develop good living habits.