57 years old blood sugar 7.1 mmol / L if the fasting blood sugar is high, usually need to seek medical attention. If it is two hours after the meal blood sugar is normal, usually do not need medication. The normal range of fasting blood glucose is 3.9~6.1mmol/L, so fasting blood glucose 7.1mmol/L is high, if combined with typical diabetes “three more and one less” symptoms, can be considered diabetes. If diagnosed with diabetes, dietary control, such as controlling total calorie intake, maintaining a low-sugar, low-fat diet, etc., together with appropriate exercise, can help to lower blood glucose, but also can follow the doctor’s advice to take medication. The normal range of blood glucose two hours after meal should be less than 7.8mmol/L, so two hours after meal blood glucose 7.1mmol/L is normal, generally no need for medication. Patients with abnormal blood glucose values at the age of 57 are advised to go to the hospital and ask the doctor to make a judgment in the light of their individual situation.