Glycated hemoglobin of 8% is a relatively serious condition, suggesting unstable blood glucose control and high blood glucose in the last 2~3 months. Glycated hemoglobin is the glycosylated hemoglobin in the body, reflecting the average value of blood sugar in the body in the past 2~3 months, and the normal value is 4%~6%. Glycated hemoglobin of 8% is a high value, indicating unstable blood sugar control in the past 2~3 months, which is a more serious condition, and needs to be combined with fasting blood glucose and 2-hour postprandial blood glucose and other further testing indicators to make a comprehensive judgment. When the glycated hemoglobin is 8%, it is recommended to consult a doctor in time to clarify the condition and adjust the glucose-lowering program under the doctor’s guidance.