Glucose tolerance generally refers to the glucose tolerance test. You do not need to bring your own cup for glucose tolerance test, usually the hospital will prepare disposable cups. Glucose tolerance test is one of the commonly used methods to diagnose diabetes, and the diagnosed diabetes should be treated reasonably with the doctor. Oral glucose tolerance test is to draw fasting blood, drink a cup of 250~300ml of sugar water containing 75g of glucose, and then measure the blood glucose in 0.5 hours, 1 hour, 2 hours and 3 hours. The diagnosis is made based on the blood glucose results. Glucose tolerance test is a classic and simple test, commonly used in clinical diagnosis of diabetes. Insulin release test and C-peptide release test can also be checked at the same time. Glucose tolerance test should be performed under the supervision of a doctor to ensure accurate results. As the sugar water for the glucose tolerance test is quite sweet, you can bring your own cup to drink water for relief after the test. If diabetes is diagnosed, it is important to actively standardize treatment.