After abnormal glucose tolerance returns to normal, it may still recur if you don’t maintain healthy lifestyle habits. Decreased glucose tolerance generally refers to blood glucose in the range of 7.8 to 11.1mmol/L after 2 hours of empty glucose tolerance test, at this time the blood glucose exceeds the normal value, but does not reach the diagnostic standard of diabetes mellitus, which is called abnormal glucose tolerance. Abnormal glucose tolerance belongs to the early stage of diabetes mellitus, at this time the condition is not serious, generally can be improved by improving the habits of life so that the blood glucose return to the normal range, such as low-sugar and low-fat diets, strengthen the exercise, etc., after the recovery if you do not pay attention to it, the glucose tolerance will continue to be abnormal or even become diabetes mellitus further. Abnormal glucose tolerance is related to many factors. Even if you improve your lifestyle and eating habits, some people have a family predisposition to diabetes, and if you are genetically more susceptible, you will still be more susceptible to diabetes than the general population, even if you maintain a healthy diet and exercise habits. If you have abnormal glucose tolerance, it is recommended that you seek prompt medical attention and choose a reasonable treatment plan under the guidance of your doctor.