Glucose tolerance test for the water temperature itself does not have a clear requirement, as long as it is warm boiled water can be; mainly strict requirements for the examination time, through the standardization of the examination can get accurate results. Glucose tolerance test generally choose fasting 8~10 hours, after measuring a fasting blood glucose oral glucose 75g, need to be taken with water, the clinical requirements of the application of warm water, but the specific temperature is not a special requirement, not very strict; but after taking sugar water half an hour, one hour, two hours, three hours, respectively, to measure the blood sugar, through monitoring the changes in blood sugar to reflect the pancreatic islet function. If abnormal glucose tolerance is detected through examination and elevated blood glucose is usually found, it is necessary to consult a doctor in time for observation and standardized treatment under the guidance of clinicians.