Glucose tolerance generally refers to the glucose tolerance test, glucose tolerance test needs to be examined by blood collection from a vein, and finger sticking is not as accurate as blood collection from a vein. Glucose tolerance test is a kind of sugar load test, which requires patients to drink a certain amount of anhydrous glucose within a certain period of time, and then measure fasting before taking it, and then take blood glucose test half an hour, one hour, two hours and three hours after taking it, and need to take venous blood for the examination. The finger prick is usually taken from the peripheral blood, which is suitable for diabetic patients for daily blood glucose monitoring, but is not as accurate as venous blood for blood glucose measurement. Patients who need to perform glucose tolerance test should actively cooperate with the operation process of medical personnel, and if there is any abnormal blood glucose, it is recommended to carry out standardized treatment under the guidance of doctors.