Just one hour after a meal, blood sugar rises one hour, and blood sugar returns to normal two hours, usually cannot be directly diagnosed as diabetes, but also combined with fasting blood sugar and glycated hemoglobin to judge that the blood sugar index one hour after a meal is always high, the cause can be found from the following four aspects.

First, dietary structure. Normal people's blood sugar peaks in 30 minutes to an hour after eating, usually no more than 11.1 centimeters per litre. Then insulin secretion increased, gradually falling back to the normal range in about two hours, less than 7.8 milliliters per liter. If the diet is high in carbohydrates, such as rice and sweets, and eats a lot and quickly at the same time, it may cause blood sugar to temporarily rise in one hour, but it can return to normal in two hours, which is a normal physiological phenomenon.

Second, individual differences. Some people's insulin secretion is slightly delayed, which may cause blood sugar to be high in one hour, but two hours can still bring the intestines to adjust blood sugar to normal levels, so don't worry too much, but be wary of the risk of diabetes in the future, and strengthen diet and exercise management as soon as possible.

Third, prediabetes glucose tolerance is impaired. If fasting blood sugar is normal, less than 7.0 millimeters per liter, and blood sugar is between 7.8 and 11.1 millimeters per liter two hours after a meal, it is prediabetes, and you need to be wary of early insulin resistance.

Fourth, after gastric surgery or some functional gastrointestinal diseases, the stomach emptyes too quickly, and the food stays in the stomach for a short time, quickly entering the intestine for absorption, resulting in a rapid increase in blood sugar. Simple blood sugar is high one hour after a meal and normal two hours, which does not meet the diagnostic criteria for diabetes, but it may be an early signal of abnormal glucose metabolism, and it is recommended to do a comprehensive examination to assess the risk.

First of all, adjust the diet structure, change eating habits, and monitor fasting and two-hour postprandial blood observation for three consecutive days for persistent abnormalities. If the blood sugar is greater than 11.1 centimeters per liter after repeated meals, or is accompanied by symptoms such as excessive drinking and weight loss, it is necessary to go to the endocrinologist as soon as possible to rule out insulin secretion insufficiency or insulin resistance.