There is no data to support the severity of a glycated hemoglobin of 9.1%, but it is more serious and requires attention and medical attention as soon as possible. Glycosylated hemoglobin is an irreversible enzymatic reaction between hemoglobin and blood sugar, found in red blood cells in the body. Since the average lifespan of hemoglobin is 2-3 months, the result of the conversion of sugar to hemoglobin is generally indicative of the average level of blood sugar control over the previous 2-3 months. Typically, the normal level of glycated hemoglobin should be 4-6%. Glycated hemoglobin results can be elevated up to 9.1%, reflecting elevated blood glucose, which is a pathological manifestation, and therefore may be due to a disease such as diabetes. It is recommended that patients with a glycated hemoglobin of 9.1% go to the hospital in time to avoid delays.