Infection

H. pylori — The Stomach Bug You Need to Know About

H. pylori is a bacterium that colonises the stomach lining and is among the most common chronic infections worldwide. Most people who carry it have no symptoms, but it is the main cause of stomach and duodenal ulcers, causes chronic gastritis, and increases the risk of stomach cancer. This test uses a stool sample and detects current infection rather than past exposure.

Why Test H. pylori?

Dealing with persistent stomach pain, bloating, nausea, unexplained weight loss, or dark stools? Time to check for H. pylori. Already been treated? A follow-up test confirms whether the bug is actually gone. And since H. pylori can spread through a household, testing makes sense if someone close to you has tested positive.

What Do High H. pylori Levels Mean?

A positive result means H. pylori was found in your stool — you've got an active infection. The standard treatment is a combination of antibiotics and acid-reducing medication. Once you've finished the course, a follow-up test makes sure it's really gone.

What Do Low H. pylori Levels Mean?

A negative result means no H. pylori antigen was detected. An active infection is unlikely, though it can't rule out a past infection that's already cleared up. If your stomach still isn't happy, it's worth investigating further.

Symptoms to Watch For

  • Stomach pain or burning, especially on an empty stomach
  • Bloating and excessive belching
  • Nausea and loss of appetite
  • Unexplained weight loss
  • Dark or black stools (possible sign of bleeding)
  • Feeling overly full after small meals

Who Should Get Tested?

  • People with persistent stomach pain, bloating, or nausea
  • Those with a history of stomach ulcers or gastritis
  • Anyone with unexplained digestive symptoms
  • Household members of someone with confirmed H. pylori
  • People who've completed treatment and need to confirm it worked

How to Prepare for Your Test

No preparation needed. Just bring valid ID to your appointment.

Order Your Blood Test

Test your H. pylori levels with an accredited Swedish laboratory. Results within days, reviewed by Wellth.

H. pylori (Stool Test) →

Frequently Asked Questions

How is the H. pylori test done?
It's a stool test — you provide a sample and the lab checks it for H. pylori antigen. No blood draw needed.
Is H. pylori dangerous?
Most of the time it's harmless. But left untreated, it can lead to ulcers, chronic gastritis, and a higher risk of stomach cancer. Better to catch it early.
Can H. pylori be cured?
Absolutely. A combo of antibiotics and acid-reducing meds does the trick. A follow-up test after treatment confirms it's been cleared.
NW

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Wellth Team

Wellth

Our content is written and reviewed by Wellth, and fact-checked against peer-reviewed research and current Swedish clinical guidelines.

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Medical Disclaimer

The information on this page is provided for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Wellth provides health information and testing services but is not a substitute for clinical care. Always consult a qualified healthcare provider if you have questions about a medical condition. If you are experiencing severe or urgent symptoms, contact your doctor or call 1177 Vårdguiden. Blood test results should be interpreted by a qualified healthcare professional in the context of your complete medical history.