Postprandial glucose generally refers to 2-hour postprandial blood glucose, the normal value of 2-hour postprandial blood glucose should be less than 7.8mmol/L, so 2-hour postprandial blood glucose 7.62mmol/L is within the normal range. The normal range of fasting blood glucose for normal people is 3.9~6.1mmol/L, and the normal value of 2-hour postprandial blood glucose should be less than 7.8mmol/L. If the 2-hour postprandial blood glucose is 7.62mmol/L, it is generally within the normal phenomenon. In order to prevent high blood sugar, in daily life, we need to have a balanced diet, eat less high sugar and greasy food, and focus on nutritious and easy-to-digest food. If physically possible, appropriate exercise and maintaining a healthy body weight will help prevent abnormal blood glucose. If patients with blood glucose of 7.62mmol/L experience abnormal discomfort, they should go to a regular hospital and undergo a relevant examination to determine the cause of the disease.