A single fingertip blood measurement cannot be used as a judgment standard for normal blood glucose or not, because normal people may also have abnormally high blood glucose if they eat a high-sugar diet or other stressful situations before the measurement, so it is recommended to have a second measurement. If the 2 times postprandial 2 hours fingertip blood glucose is around 9.3mmol/L, it should be judged according to the blood glucose standard of different people: 1. General population: If the 2 hours postprandial 2 hours fingertip blood glucose 9.3mmol/L is abnormal. For people with normal pancreatic function, the blood sugar 2 hours after meal does not exceed 7.8mmol/L. Blood sugar 9.3mmol/L is considered to be hypoglycemic, although it does not reach the diagnosis standard of diabetes, it may be transformed into diabetes, and it is necessary to go to hospital for glucose tolerance examination to determine the condition; 2. Diabetic patients: for young patients with less complications, two hours after meal at 9.3mmol/ L belongs to the substandard state, and it is better to control the blood sugar below 7.8mmol/L 2 hours after meal. The smoother the blood sugar control, the less likely acute complications such as diabetic ketoacidosis, lung infection, urinary tract infection and skin infection will occur. For patients who are older or have more complications, such as cerebral thrombosis and myocardial infarction, a fingertip glucose of 9.3 mmol/L at 2 hours after meal can be regarded as a normal condition.