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

    HYDROGEN BREATH TEST: DISCOVERING THE CAUSE OF BLOATING

    2 minute(s) read
    Information by
    Package Image
    Dr. Prapat Samitisatian

    Bangkok Hospital Headquarter

    Updated on: 21 Jan 2026
    Dr. Prapat Samitisatian
    Dr. Prapat Samitisatian
    Bangkok Hospital Headquarter
    Recommended Packages
    Package Image
    GI and Liver Package
    HYDROGEN BREATH TEST: DISCOVERING THE CAUSE OF BLOATING
    Bangkok Hospital Headquarter
    Updated on: 21 Jan 2026

    When you suffer from bloating or abdominal discomfort for no reason and the symptoms still remain even after treatments, Hydrogen Breath Test (HBT) can help you discover the root cause.  The test not only provides in-depth diagnosis, but is also safe and easy to administer.  This helps reassure the patient of accurate results that will lead to appropriate treatment.


    What Is Hydrogen Breath Test?

    Hydrogen Breath Test (HBT) is a medical test that examines whether or not there is any issue with how the body digests sugar or carbohydrate.  It uses sugar from fruits (fructose) and from milk (lactose) as test agents, to determine sugar intolerance in patients.  In addition, the test helps diagnose abnormal bacteria growth in the small intestine that leads to problems in the abdominal cavity, allowing the actual root cause of the condition to be discovered.


    Who Should Undergo Hydrogen Breath Test?

    • A person who suffers from bloating or abdominal discomfort but does not respond to treatments.
    • A person who belches or passes gas frequently.
    • A person who suffers from abdominal tightness without known cause.
    • A person who has diarrhea after drinking milk.

    What are the Steps Involved in Hydrogen Breath Test?

    The Hydrogen Breath Test procedure involves having the patient blow into a test bag before drinking a sugary drink, after which the patient will blow 3 – 9 times into another test bag.  The duration of the test is about 3 – 4 hours, and the patient can resume normal routine afterwards.


    Hydrogen Breath Test ค้นหาตัวการท้องอืดแน่นท้อง

    How to Prepare for A Hydrogen Breath Test?

    • 1 month before the test, stop taking all types of antibiotic and laxative. 
    • 1 day before the test, do not consume anything except white bread, white rice, boil eggs, potatoes, chicken, or boiled or baked fish – all flavored only with salt and pepper – tea or black coffee without milk or sugar, and plain water.
    • 12 hours before the test, stop eating and drinking completely.
    • 2 hours before the test, cleanly brush teeth.
    • 1 hour before the test, do not fall asleep nor perform any exercise – both before and during the test.
    • At least 1 hour before as well as during the test, no chewing gums nor candy; stop smoking and avoid cigarette smoke. 

    Side-Effects of Hydrogen Breath Test

    • Nausea
    • Vomiting
    • Stomachache or discomfort during the test
    • Some soft stool during the test.

    What Are the Benefits of Hydrogen Breath Test?

    • Enables doctors to accurately diagnose the condition.
    • Easy to administer, safe and worry-free. 

    Your Hydrogen Breath Test Expert

    Dr. Prapat Samitisatian, experienced physician specializing in gastroenterology, GI and Liver Center, Bangkok Hospital.

    Click here for appointment


    Hospital Specializing in Hydrogen Breath Test

    GI and Liver Center at Bangkok Hospital is ready to care for patients who have gastrointestinal tract issues.  If you have persistent heartburn, stomachache or bloating, you can receive an accredited Hydrogen Breath Test from our team of specialists and multidisciplined medical staff.

    Information by

    Doctor Image

    Dr. Prapat Samitisatian

    Internal Medicine

    Dr. Prapat Samitisatian

    Internal Medicine

    Doctor profileDoctor profile

    For more information, please contact

    GI & Liver Center

    2nd Floor, D Building, Bangkok Hospital

    Daily 07.00 a.m. – 03.00 p.m.

    (+66) 2310 3000

    1719 (local mobile calls only)

    [email protected]

    Related Doctors

    See all doctors

    Packages & Promotions

    GI and Liver PackageGI and Liver Package
    GI and Liver Package

    22,500 - 44,000 Baht

    Detail
    More packages

    Health Info

    More health info

    Health Info

    Why should ERCP be performed at Bangkok Hospital? Image
    AI
    Why should ERCP be performed at Bangkok Hospital?
    Lying on the left side reduces burning sensation from acid reflux. Image
    AI
    Lying on the left side reduces burning sensation from acid reflux.
    Endoscopic Retrograde Cholangiopancreatography (ERCP) Image
    Endoscopic Retrograde Cholangiopancreatography (ERCP)
    More health info