Order your kit
Your test arrives in discreet packaging with clear instructions.
About this test
Looks for Helicobacter pylori antigen in stool. A detected result can support evidence of current H. pylori infection, while medicines, collection timing and sample quality can affect the result.
At a glance
- Sample: Stool
- Collection: Collect a stool sample at home using TDL self-collect kit KT363 or KT472
- Estimated turnaround: 3 days from laboratory receipt of a usable sample
What this test measures
- H. pylori antigen
- Material associated with Helicobacter pylori in stool, used to look for evidence of current infection. A detected result supports current H. pylori infection. A negative result can be unreliable after certain antibiotics, bismuth or acid-suppressing medicines.
How clinicians use this test
Clinicians use H. pylori antigen as part of investigating digestive symptoms or monitoring a known condition. The result may narrow the possibilities, but history, examination and other tests may still be needed for diagnosis.
Is this the right test for you?
Someone exploring the stated digestive marker with a clinician, provided urgent or persistent symptoms are not being delayed by postal testing.
Preparation and collection
Follow the supplied stool-collection instructions and return the sample on the same day. Do not post over weekends or bank holidays. Medicines can affect stool-antigen results, so check the kit instructions or ask a clinician about timing before collection.
Understanding your result
The laboratory will report H. pylori antigen with an assay-specific reference range, threshold or qualitative interpretation. Read the biomarker explanation above for common reasons a result may be high, low, detected or reactive, then use the laboratory comment and clinical context to decide whether repeat or follow-up testing is needed.
Your results and next steps
Discuss a raised, detected or otherwise unexpected result with a GP or digestive-health clinician. Persistent symptoms, bleeding, weight loss or worsening pain need assessment even when the result is reassuring.
Limitations
A result cannot identify every cause of digestive symptoms. Collection quality, medicines, recent infection and other conditions may affect interpretation.
When to get medical help
Do not wait for a home-test result if you feel seriously unwell. Call 999 for a life-threatening emergency, or use NHS 111 when you need urgent advice and are unsure what to do.
How it works
Collect your sample
Follow the kit guidance for the sample type shown above.
Post the same day
Post Monday–Thursday using the supplied tracked return.
Get your results
View secure, doctor-reviewed results and clear guidance online.
Questions, answered
How accurate is an at-home test?
Your sample is processed by a professional UK partner laboratory using the same analytical methods used for clinician-requested testing. Sample quality depends on following the collection instructions carefully.
Are my results private?
Yes. Kits use discreet packaging and your results are delivered through a secure digital service.
Does this diagnose a condition?
No. The test checks and measures biomarkers. Results and the doctor’s comment can help you decide what to discuss with your GP.
When should I post my sample?
Collect and post on the same day, ideally Monday–Thursday, to avoid a sample waiting in the postal system over a weekend.
What happens if my sample cannot be processed?
The support team will explain the next step if the laboratory cannot process your sample. Any recollection or refund depends on the circumstances and the applicable policy.
When should I speak to my GP?
Speak to your GP if symptoms persist, worsen or concern you. Seek urgent medical help for severe or sudden symptoms.
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