2-hour postprandial blood glucose 17mmol / L, if diabetic patients, it is recommended to rationalize the use of medication, diet control, and if necessary, timely access to medical care. Normal people or the first time you find high blood sugar, you need to consult a doctor for examination, diagnosis and symptomatic treatment. 1. Diabetic patients: when diabetic patients appear 2 hours after meal blood glucose 17mmol / L, suggesting that blood glucose control does not meet the standard, generally require diabetic patients 2 hours after meal blood glucose control at 10mmol / L or less. Patients with 2-hour postprandial blood glucose 17mmol/L can consult a medical professional to adjust the glucose-lowering program. 2. Normal people or those who find high blood glucose for the first time: When the phenomenon of 2-hour postprandial blood glucose of 17mmol/L occurs once in a while, it may be caused by too much sugar in the diet, or it may be caused by diabetes, infection, stress, etc. It is recommended to consult a doctor immediately. When elevated blood sugar levels are detected, prompt medical attention is required.