Oranges are a common fruit in daily life. Whether eating oranges causes blood sugar to rise or not depends on different people and different situations. In the case of general population without special diseases or diabetes, blood sugar usually does not rise after eating oranges. Because the sugar content of oranges is not very high, generally the sugar content is 9%-13%, which is a fruit with low to medium sugar content. Insulin in the general population is secreted on demand, whether eating oranges, bananas, pineapple honey, durian or apples, when blood sugar appears to rise, insulin will be secreted in time to maintain blood sugar within the normal range. Diabetic patients whose blood sugar control is not up to standard, eating oranges will cause a rise in blood sugar, especially if they eat oranges after meals, and the amount eaten is relatively large, which can easily lead to a rapid rise in blood sugar. Because the diabetic patient itself has an impairment in insulin secretion, or due to the occurrence of insulin resistance, glucose cannot enter the cells, thus causing the blood sugar to rise. Therefore, whether eating oranges will raise blood sugar depends on whether the patient has diabetes. Diabetic patients should control their diet appropriately. If they want to eat oranges, they can eat appropriately on the basis of good blood sugar control, and they can eat a little orange in moderation between meals, which will not lead to a significant increase in blood sugar. If the diabetic patient’s blood sugar is not well controlled, it is recommended not to eat oranges for the time being, so as not to affect the stability of blood sugar.