Diabetes: HbA1c and Fasting Sugar, Explained Simply
Fasting sugar shows one morning. HbA1c shows the last 2–3 months. Together, they give a much clearer picture than either alone.
Fasting sugar
This is your blood sugar after 8–10 hours without food, usually first thing in the morning. It can move up or down with a single meal, stress or illness.
HbA1c
HbA1c reflects average blood sugar over the last 2–3 months. That is why doctors often use it to diagnose diabetes and to check long-term control.
What to do with the result
Do not diagnose yourself from one number. Take the report to your doctor, who will look at your symptoms, medicines and other tests together. If you have a family history of diabetes, ask your doctor how often to test.
Disclaimer: This article is general health information only, not medical advice. Consult a doctor for personal health decisions, symptoms, or test results.
Get Your ₹200 Health Card → Find a Partner Lab →
Related articles
Why a Yearly Full-Body Checkup Matters
Most lifestyle problems show up in blood tests long before symptoms. A yearly checkup catches them early, when they are cheapest to manage.
Thyroid Tests: TSH, T3 and T4 — What They Mean
TSH is the control signal, T3 and T4 are the thyroid hormones. A change in one without the others still needs a doctor’s reading.
Cholesterol and Lipid Profile: Understanding Your Numbers
Total cholesterol alone tells only part of the story. LDL, HDL and triglycerides together matter far more.