Bangkok Hospital
Caret Right
Search
CTA Curve
Find doctors icon
Find doctors
Appointments icon
Appointments
Contact icon
Contact
Call undefined
Menu
  • Select Hospital

  • Language

Doctor not found
Doctor not found
Doctor not found
Doctor not found
Bangkok Hospital
Stay Connected
View on Google Maps
    Privacy Policy

    |

    Cookie Policy

    Copyright © 2026 Bangkok Hospital. All right reserved


    Network Hospitals Directory
    MEMBER OFBDMS logo

    Let's Get to know Hemoglobin A1C

    1 minute(s) read
    Information by
    Bangkok Hospital Headquarter
    Updated on: 09 Jan 2026
    Recommended Packages
    Package Image
    Hypertension Screening Package
    Let's Get to know Hemoglobin A1C
    Bangkok Hospital Headquarter
    Updated on: 09 Jan 2026

    Let’s Get to Know Hemoglobin A1C

          Hemoglobin A1c indicates the average level of blood sugar (glucose) that has accumulated over the past 2-3 months. It means that if we over consume foods with sugar; our body will be unable to use that amount, so the surplus will be stored in the blood resulting in a gradual increase in hemoglobin A1C levels.

    Why is Hemoglobin A1C used to measure diabetes?         

    Diabetics may be familiar with fasting 6-8 hours prior to receiving a blood’s test at a scheduled doctor’s appointment. The blood sugar level indicates the amount of sugar in the food consumed in the past 1-2 days; many individuals may avoid sugary foods or sweets 2-3 days prior to the test in order to appease their doctor with a positive result (80-130 milligram/deciliter). This is why a hemoglobin A1C test provides a better determinant of the patient’s diabetic condition, as it takes into account sugar consumption in the past 2-3 months, in contrast to a few days prior to a normal blood test.

    How often should you get a Hemoglobin A1C test?

         Diabetics are recommended to have a hemoglobin A1C test every 2-3 months. This is to evaluate how well your diabetes is under control, ideally one will have a hemoglobin A1C reading of less than 7%. If you are able to maintain such levels continuously, your doctor may reduce the number of hemoglobin A1C tests to 2 per year.

    You are able to control your hemoglobin A1C levels without going on a strict diet. Some individuals may try to change their diet a few days prior to a check-up, however this will not influence or change the hemoglobin A1C level. As such, it is recommended to maintain a healthy diet and control the risk factors of diabetes to prevent complications and other conditions.

    For more information, please contact

    Bangkok Diabetes, Thyroid and Endocrine Center

    2 nd Floor Bangkok Hospital Building

    Monday-Friday: 7.00 - 16.00

    Saturday-Sunday: 7.00 – 16.00

    (+66) 2755 1129

    (+66) 2755 1130

    (+66) 2755 1697

    1719 (local mobile calls only)

    [email protected]

    Related Doctors

    See all doctors

    Packages & Promotions

    Hypertension  Screening PackageHypertension  Screening Package
    Hypertension Screening Package

    6,500 Baht

    12,170 Baht

    Detail
    More packages

    Health Info

    More health info

    Health Info

    Overweight due to hormones, no matter how you lose weight, you won't get slim. Image
    AI
    Overweight due to hormones, no matter how you lose weight, you won't get slim.
    ภาวะก่อนเบาหวาน เป็นได้แบบไม่รู้ตัวPre-diabetes can happen without you knowing it. Image
    AI
    ภาวะก่อนเบาหวาน เป็นได้แบบไม่รู้ตัวPre-diabetes can happen without you knowing it.
    Non-surgical Heat-based Thyroid Nodule Ablation (RFA) Scarless, Quick Recovery, Live Confidently Image
    AI
    Non-surgical Heat-based Thyroid Nodule Ablation (RFA) Scarless, Quick Recovery, Live Confidently
    More health info