Fasting blood glucose 8.8mmol/L is above the upper limit of the normal range for both normal people and diabetics, and may be more problematic. 1. The normal value of fasting blood glucose for normal people is between 3.9~6.1mmol/L, so a high fasting blood glucose of 8.8mmol/L may be caused by diabetes, infection, stress and other factors, and it is recommended that you consult a medical professional for a clear diagnosis. 2. For patients who have been diagnosed with diabetes in the past, the general fasting blood glucose needs to be controlled between 4.4~7.0mmol/L, so the fasting blood glucose 8.8mmol/L is not reach the control target, can consult a professional doctor to adjust the treatment program. Fasting blood sugar 8.8mmol / L patients should communicate with the doctor as soon as possible, under the guidance of the doctor to correct diagnosis and treatment, do not delay the condition.