Whether fasting blood glucose 6.1mmol/L is normal or not depends on the patient’s condition, if it is a previously healthy person, it can be considered as belonging to the normal range, but if it is pregnancy, the value is high. 1. The normal range of fasting blood glucose is 3.9-6.1mmol/L. 6.1mmol/L is numerically within the normal range, but belongs to the high limit of the normal range, and if it exceeds 6.1mmol/L, it indicates abnormal blood glucose. 2. In the case of pregnancy, the normal value of fasting blood glucose is 3.1-5.1mmol/L. At the 24th to 28th week of pregnancy, the normal value of fasting blood glucose is 3.1-5.1mmol/L. At 24 to 28 weeks of pregnancy, an oral 75 grams glucose tolerance test is performed, and diabetes is diagnosed when the fasting blood glucose reaches or exceeds 5.1 mmol/L, or the blood glucose value reaches or exceeds 10.0 mmol/L one hour after oral glucose or 8.5 mmol/L two hours after oral glucose. When blood glucose is elevated, lifestyle intervention, dietary control combined with exercise, and formal consultation in the endocrinology department are required.