If the glucose tolerance of pregnant women shows 10.3mmol/L at 1 hour, this situation is not normal. The best time to test glucose tolerance is within 24-28 weeks of pregnancy, fasting blood glucose should not exceed 5.1mmol/L, glucose tolerance test 1 hour after meal blood glucose should not exceed 10.0mmol/L, 2 hours after meal blood glucose should not exceed 8.5mmol/L, any one of the three exceeds the standard is diagnosed as gestational diabetes. Gestational diabetes can be very dangerous, both for the pregnant woman and for the fetus. On the one hand, gestational diabetes may cause hyperosmolar coma and ketoacidosis in pregnant women. On the other hand, for the fetus, it may cause excessive fetal growth, leading to the emergence of a giant baby, or the fetus may not absorb sufficient nutrients and cause malnutrition, delayed fetal lung development, and intrauterine hypoxia in late pregnancy. For pregnant women whose glucose tolerance test is higher than normal, it is recommended to maintain a balanced diet throughout pregnancy, eat less and more meals, avoid foods with high sugar content, eat more fresh vegetables and coarse grains, and take a walk for half an hour to one hour after dinner to reduce the rise of blood sugar in the body. If the blood sugar control by diet and exercise is not satisfactory, you should seek medical advice and use insulin for blood sugar control under the guidance of a doctor.