Fasting blood glucose and 2-hour postprandial blood glucose are commonly used clinical indicators to assess blood glucose levels. The normal range of fasting blood glucose for normal people is 3.9~6.1 mmol/L, and the normal range of 2-hour postprandial blood glucose for normal people is not more than 7.8 mmol/L. If fasting blood glucose or 2-hour postprandial blood glucose levels are abnormal, it is important to have timely medical consultation. If the fasting blood glucose or 2-hour postprandial blood glucose level is abnormal, you should consult a doctor in time to improve the glycosylated hemoglobin, glucose tolerance test and other related examinations. Normally, the normal range of glycosylated hemoglobin is 4%~6%. Therefore, when the blood glucose value exceeds the normal fluctuation range, you should go to the endocrinology department of regular hospitals for early diagnosis and early intervention to prevent high blood glucose from causing harm to your body and affecting your health.