Postprandial blood glucose 11 point more than mmol per liter first should be clear that the blood glucose value is 1 hour after meal or 2 hours after meal blood glucose value, if the 2 hours after meal blood glucose value, has exceeded the normal range, is generally more serious, the patient needs to pay attention to their own blood glucose situation in time, so as to avoid aggravation of the condition. The blood glucose value of about 1 hour after meal is generally 6.7 to 9.4 mmol per liter, the most will not exceed 11.1 mmol per liter, and the blood glucose value of 2 hours after meal is generally less than 7.8 mmol per liter. Therefore, postprandial blood glucose 11 points more than mmol per liter if the 2 hours after meal blood glucose value, has exceeded the normal range, consider the possibility of diabetes mellitus. At the same time, patients should pay attention to observe whether they have three more and one less phenomenon, such as eating more, drinking more, urinating more, weight loss. If the patient for the first time appeared postprandial blood glucose more than 11 mmol per liter, it is recommended to go to the hospital in time for laboratory tests and pancreatic β-cell function test to confirm whether there is diabetes mellitus.