Hello! Glycosylated hemoglobin reflects the average blood sugar level for three months. Your father's glycosylated hemoglobin is 3 higher than normal, indicating that blood sugar control is not ideal at ordinary times. There are many reasons for blood sugar instability, the most common ones are: poor diet control; Irregular activities; Improper insulin injection method; Improper medication, etc. Please check them one by one.
(Dr. Xu Lingling from Peking Union Medical College Hospital solemnly reminds me that I can't fully understand the illness because I can't see the patient face to face. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )