The full name of glucose tolerance is Glucose Tolerance Test. To do glucose tolerance test, it is usually required to drink the sugar water within 5 minutes, and it is recommended to do glucose tolerance test under the guidance of doctor. Glucose tolerance test is a test to detect the body’s tolerance to blood glucose. It usually requires drinking the sugar water within 5 minutes, and then testing the blood glucose at half an hour, one hour, two hours and three hours after drinking the sugar water. During the test, the subject does not drink tea and coffee, does not smoke, and does not do strenuous exercise, but does not need to be absolutely bedridden. Blood specimens should be sent for testing as early as possible. If the glucose tolerance test examination reveals elevated blood glucose value, it is recommended to consult the doctor in time for further examination under the doctor’s guidance, and according to the results of the examination, do targeted treatment and treatment.