High 1-hour postprandial blood glucose is generally abnormal, but if it is slightly high it may be a testing error and needs to be judged according to the specific value. Fasting blood glucose, 2-hour postprandial blood glucose, glycated hemoglobin and other indicators should also be combined to comprehensively assess the blood glucose level. Glucose tolerance test is a glucose tolerance test in which blood is taken from a vein to measure blood glucose 30 minutes, 1 hour, 2 hours and 3 hours before and after taking glucose. A high blood glucose level 1 hour after a meal may indicate poor pancreatic function or pancreatic resistance. However, if it is only slightly high, it may be a testing error, and needs to be judged according to the specific value. In addition, it is also necessary to combine fasting blood glucose, 2-hour postprandial blood glucose, glycated hemoglobin and other indicators to comprehensively assess the blood glucose level. If a patient’s glucose tolerance test results are abnormal, it is recommended that the patient go to the hospital in a timely manner to get a clear diagnosis and, if necessary, standardized treatment, so as not to delay the condition.