There are two common methods of blood glucose measurement, one is to take fingertip blood glucose measurement, which needs to be measured according to the instruction manual and the doctor’s guidance; the other is to take venous blood glucose measurement, which needs to be operated in cooperation with the doctor before and after the blood draw in order to accurately measure the blood glucose. Please consult your doctor for more details on the measurement method. Clinically, fasting blood glucose and 2-hour postprandial blood glucose are generally used as indicators for blood glucose assessment. To measure fasting blood glucose, it is necessary to fast for 8~10 hours; to measure postprandial blood glucose, it is necessary to measure the blood glucose value at the required time point, starting from the first bite of food. There are two common methods of blood glucose measurement, one is to take fingertip blood for blood glucose measurement and the other is to take venous blood for blood glucose measurement. When taking fingertip blood for blood glucose measurement, the blood glucose value will be affected by many factors such as the degree of squeezing of blood, sensitivity of test strips, and the precision of blood glucose meter, etc. When taking venous blood for blood glucose measurement, the accuracy is relatively high, but it will also be affected by the precision of the instrument. It is advisable to consult your doctor for details on how to measure blood glucose.