The 2-hour postprandial blood glucose of 9.3mmol/L is high for normal people, which may be more serious; for diabetic patients it is within the target range, which is generally not serious. 1. The normal value of 2-hour postprandial blood glucose for normal people is below 7.8mmol/L. Therefore, a high 2-hour postprandial blood glucose of 9.3mmol/L may be caused by eating too many sweets, or by diabetes, infections, and other illnesses, so it may be more serious, and it is recommended that you consult a medical professional for a definitive diagnosis. 2. For patients who have been diagnosed with diabetes in the past, generally the 2-hour postprandial blood glucose should be controlled below 10mmol/L, so the 2-hour postprandial blood glucose of 9.3mmol/L has reached the control target, and is usually not serious, so you can continue with the current treatment program. Patients with a 2-hour postprandial blood glucose of 9.3mmol/L should go to the hospital in time for examination and treatment under the guidance of a doctor.