HbA1c – HbA1c (glycated hemoglobin) reflects your average blood sugar over the past 2-3 months by measuring how much glucose is attached to your red blood cells.
What HbA1c measures
HbA1c measures long-term blood-sugar control – a key marker for diagnosing and monitoring prediabetes and diabetes.
Typical ranges
Below 5.7% is normal; 5.7-6.4% indicates prediabetes; 6.5% or higher suggests diabetes. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Higher average blood sugar, indicating prediabetes, diabetes, or the need to adjust management.
What low results can mean
Usually normal; very low values are interpreted alongside your health history.
How the test is done
A blood sample; no fasting required because it reflects a long-term average. At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal HbA1c level?
Below 5.7% is normal; 5.7-6.4% indicates prediabetes; 6.5% or higher suggests diabetes. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high HbA1c result mean?
Higher average blood sugar, indicating prediabetes, diabetes, or the need to adjust management.
Can I test HbA1c at home?
Yes. A blood sample; no fasting required because it reflects a long-term average. An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.