The normal value of blood glucose two hours after taking sugar should be between ≤7.8mmol/L, the specific circumstances also need patients to go to the hospital to do a comprehensive examination, consult the doctor. After the patients do glucose tolerance test, generally 0.5 ~ 1 hour after taking sugar blood glucose elevation peak, generally in 7.8 ~ 9.0mmol / L, should <11.1mmol / L; 2 hours after taking sugar blood glucose ≤ 7.8mmol / L; 3 hours after taking sugar blood glucose to return to the level of fasting blood glucose. If the patient's two-hour blood glucose value after taking sugar is between 7.8 and 11.1 mmoI/L, and fasting blood glucose <7.0 mmol/L, the glucose tolerance may be impaired, and if the two-hour blood glucose value after taking sugar is ≥11.1 mmol/L, the risk of diabetes mellitus may be predicted. If the patient's blood glucose is high, the diet should be based on balanced nutrition and calorie balance, avoid eating sweets as much as possible, and he/she can do physical exercise, such as swimming and cycling, etc., and his/her blood glucose situation should be closely monitored during the recovery process. If the patient is not feeling well, he should go to the hospital in time for diagnosis and treatment.