If the glucose tolerance test result is high, it is recommended to go to the Endocrinology Department on an empty stomach for further examination. The glucose tolerance test is usually performed at 24-28 weeks of pregnancy to screen for gestational diabetes. The glucose tolerance test is performed on an empty stomach, half an hour, one hour, two hours and three hours after drinking sugar water. The normal value of fasting blood glucose for glucose tolerance test in pregnancy should be less than 5.1 mmol/L, blood glucose after 1 hour should be less than 10.0 mmol/L, and blood glucose after 2 hours should be less than 8.5 mmol/L. If the result is high, it is recommended to go to the endocrinology department on an empty stomach.