Glycated hemoglobin of 5.3% is within the normal value range and is considered normal. Glycated hemoglobin is the product of combining hemoglobin in red blood cells of human blood with sugar in serum, which is used to assist in the diagnosis of diabetes mellitus, and can reflect the control of blood glucose in the last 3 months, and its normal value is 4%~6%, so glycated hemoglobin 5.3% is normal. A high glycosylated hemoglobin may diagnose diabetes or be related to poor treatment; a low glycosylated hemoglobin may be related to anemia resulting in decreased hemoglobin. Additionally, chronic liver disease can reduce the level of glycosylated hemoglobin by interfering with red blood cell production and reducing their lifespan. When the glycosylated hemoglobin value is abnormal, the results should be interpreted under the supervision of a physician so that the treatment plan can be adjusted.