Hydrogen Breath Test for Small intestinal bacterial overgrowth (SIBO)

Purchase Now, Visit Within 180 Days

Your test purchase is valid for 180 days from the payment date. You can pay today and visit the clinic at any time within the following 180 days.

Please make your appointment at least six hours before visiting through:

• WhatsApp
• LINE
• Email

The test must be completed before the 180-day validity period expires.

About the Test

The hydrogen and methane breath test is a reliable, non-invasive test used to support the diagnosis of Small Intestinal Bacterial Overgrowth (SIBO). It measures hydrogen and methane gases produced after drinking a glucose or lactulose solution.

The test is performed at the MedEx clinic and takes approximately 2–3 hours to complete.

Benefits of SIBO Testing

• Non-invasive and needle-free
• Measures both hydrogen and methane gases
• May help identify a possible cause of persistent digestive symptoms
• Supports more targeted treatment planning
• May help reduce unnecessary treatments or repeated trial-and-error
• Provides actionable information based on your gas pattern
• Performed at the clinic under clear testing instructions

Depending on your results and clinical assessment, treatment may include medication, dietary changes or other therapies recommended by a qualified healthcare professional.

Why Identifying SIBO Matters

SIBO is an often-overlooked cause of persistent digestive symptoms. It can interfere with digestion, nutrient absorption and the normal balance of bacteria in the digestive system.

If left unaddressed, SIBO may contribute to nutritional deficiencies, intestinal inflammation and worsening digestive symptoms. Testing can help your healthcare provider better understand the possible cause of your symptoms and recommend an appropriate treatment plan.

Are You Experiencing These Symptoms?

You may consider SIBO testing if you regularly experience:

• Bloating or abdominal swelling
• Excessive gas or flatulence
• Diarrhea or constipation
• Alternating bowel habits
• Abdominal discomfort or cramping
• Feeling unusually tired after eating
• Unexplained nutrient deficiencies
• Unintended weight loss
• Persistent IBS-like symptoms

These symptoms can have many possible causes. A breath test helps provide additional information but should be interpreted together with your medical history and clinical assessment.

Health Conditions Commonly Associated with SIBO

SIBO may be considered in people with conditions such as:

• Irritable Bowel Syndrome (IBS)
• Celiac disease or gluten-related disorders
• Inflammatory Bowel Disease (IBD)
• Chronic digestive motility problems
• Certain autoimmune conditions
• Unexplained nutritional deficiencies
• Persistent fatigue alongside digestive symptoms

An association does not mean that SIBO is the only cause of these conditions or symptoms.

What the Test Measures

The test measures hydrogen and methane gas levels in your breath after you drink a glucose or lactulose solution.

Breath samples are collected at regular intervals over approximately 2–3 hours. A significant rise in hydrogen or methane may indicate abnormal fermentation consistent with bacterial overgrowth or methane-related intestinal overgrowth.

How the Test Works

1. Follow the required preparation diet and fasting instructions.
2. Visit the MedEx clinic at your confirmed appointment time.
3. Provide an initial breath sample.
4. Drink the supplied glucose or lactulose solution.
5. Provide additional breath samples every 15–20 minutes.
6. The samples are analyzed for hydrogen and methane gas levels.
7. Your results can be reviewed with a qualified healthcare professional.

Please allow approximately 2–3 hours for the complete testing process.

Important Pre-Test Instructions

Correct preparation is essential for an accurate result. You may be instructed to:

• Follow a low-residue preparation diet for 24 hours before testing
• Fast for 12 hours before your appointment
• Avoid probiotics, antibiotics and laxatives for the recommended period
• Avoid smoking or vaping before and during the test
• Avoid vigorous exercise before and during the test
• Avoid chewing gum during the test
• Follow all instructions provided by the clinic

Do not stop prescribed medication without consulting your doctor or the MedEx clinical team. Complete preparation instructions will be provided after booking.

Who Should Consider This Test?

This test may be suitable for:

• People with unresolved IBS-like symptoms
• Individuals experiencing chronic bloating or excessive gas
• People with ongoing diarrhea, constipation or alternating bowel habits
• Patients with inflammatory or autoimmune digestive conditions
• People with suspected food intolerance or unexplained nutrient deficiencies
• Individuals whose symptoms have not improved with standard digestive treatments
• Healthcare practitioners seeking additional diagnostic information for their patients

Booking and Validity Information

• Validity: 180 days from the payment date
• Testing location: MedEx clinic
• Advance booking: At least six hours before arrival
• Booking channels: WhatsApp, LINE or email
• Test duration: 1 hour
• Preparation required: Yes
• Simply complete your payment, contact us through WhatsApp, LINE or email at least six hours before your preferred visit, and come to the clinic within the 180-day validity period.