Fingertip blood glucose 10mmol / L, venous blood glucose value can not be determined, need to carry out venous blood glucose measurement to know the specific value, it is recommended to measure blood glucose under the guidance of a professional doctor. Usually the fingertip blood glucose collected by the glucometer is capillary whole blood, while the laboratory test is venous plasma or serum glucose. With plasma calibrated glucose meters, the test values during fasting are closer to the laboratory values, and capillary glucose will be slightly higher than venous glucose after meals or sugar intake. In addition, these two ways of measuring blood glucose are also different, venous glucose is clinically used for the diagnosis of diabetes mellitus, while fingertip glucose is convenient and easy to operate, and is generally suitable for diabetic patients’ daily blood glucose monitoring. It is recommended that diabetic patients should choose venous blood glucose measurement for regular review, clear diabetes diagnosis and physical examination of healthy people, and use fingertip blood glucose measurement for daily monitoring, and go to the hospital in time for treatment of abnormal blood glucose value.