H. pylori (Helicobacter pylori) is a common bacterial infection that affects the stomach. It’s estimated that a large portion of the population will carry H. pylori at some point in their lives, often without knowing it.
In New Zealand, H. pylori is recognised as a cause of gastritis, stomach ulcers, and ongoing digestive symptoms such as bloating, indigestion, and stomach pain. While many people associate these symptoms with stress or diet, H. pylori infection is often the underlying cause.
This article explains what H. pylori is, common H. pylori symptoms, how the infection spreads, why testing matters, and how H. pylori testing in NZ can help guide treatment.
What is H. pylori?
H. pylori is a spiral-shaped bacterium that lives in the lining of the stomach. Unlike most bacteria, it can survive stomach acid by producing an enzyme called urease, which allows it to colonise the stomach lining.
H. pylori infection is a major cause of:
- Chronic gastritis
- Peptic ulcers (stomach and duodenal ulcers)
- Ongoing indigestion and abdominal discomfort
In some cases, long-term untreated infection may increase the risk of stomach cancer.
Is H. pylori Contagious?
Yes, H. pylori is contagious and can spread from person to person.
It is thought to spread through:
- Saliva and oral contact
- Poor hand hygiene
- Contaminated food or water
Transmission commonly occurs:
- Within households
- During childhood
- In shared or crowded living environments
Because symptoms can be mild or absent, many people don’t realise they have H. pylori.
H. pylori Symptoms: What Does It Feel Like?
Not everyone with H. pylori has symptoms. However, when symptoms do occur, they are often persistent and gradually worsen over time.
Common H. pylori symptoms include:
- Ongoing stomach pain or burning
- Bloating or feeling overly full
- Indigestion or reflux
- Nausea
- Loss of appetite
- Unexplained weight loss
When stomach ulcers develop, symptoms may include:
- Sharp or gnawing stomach pain
- Pain that changes with eating
- Dark or black stools
- Vomiting blood (seek urgent medical care)
H. pylori vs General Indigestion
Digestive symptoms are common, but not all indigestion is caused by H. pylori.
General indigestion may:
- Come and go
- Be linked to food choices or stress
- Improve with lifestyle changes
H. pylori-related symptoms often:
- Persist for weeks or months
- Return repeatedly
- Does not fully improve with antacids or diet changes
This is why H. pylori testing is recommended when digestive symptoms don’t settle.
Why H. pylori Testing is Important
Left untreated, H. pylori infection can lead to long-term inflammation of the stomach lining and the development of ulcers and increase the risk of developing stomach cancer.
Potential complications include:
- Chronic gastritis
- Peptic ulcers
- Bleeding ulcers
- Increased risk of stomach cancer over time
Early detection of H. pylori through testing in NZ enables targeted antibiotic treatment and reduces the risk of ongoing complications.
How is H. pylori diagnosed?
H. pylori can be diagnosed using several methods, including:
- Stool tests
- Breath tests
- Blood tests
- Endoscopy (in some cases)
Another option is rapid H. pylori screening tests that detect urease activity associated with the bacterium.
How to Check for H. pylori at Home
H. pylori Testing with Smith BioMed
The Smith BioMed H. pylori Rapid Screening Test offers a non-invasive way to screen for stomach health using a simple oral swab. No blood or stool samples required.
How it works:
- A small tartar sample is collected from the teeth
- The test detects urease activity linked to H. pylori
- Results are available in around 3 minutes
If the test result is positive, follow up with a GP or other healthcare professional to confirm the result and arrange treatment.
Frequently Asked Questions (FAQs)
What is H. pylori?
H. pylori (Helicobacter pylori) is a bacterium that infects the stomach lining and is a common cause of gastritis and stomach ulcers.
Is H. pylori serious?
It can be. While some people have mild or no symptoms, untreated H. pylori can lead to ulcers and long-term stomach damage.
How do you get H. pylori?
H. pylori is usually spread through oral contact, poor hygiene, or contaminated food and water, often during childhood.
Can H. pylori be cured?
Yes. H. pylori is usually treated with a course of antibiotics prescribed by a doctor.
What should I do if my H. pylori test is positive?
If your result is positive, see your GP. They may recommend further testing and start appropriate treatment.
At-Home H. pylori Screening with Smith BioMed
For people experiencing ongoing digestive symptoms, Smith BioMed’s H. pylori Rapid Screening Test provides a convenient first step in understanding what may be happening in the stomach.
With results in just minutes, it can help inform whether medical follow-up is needed.
Smith BioMed tests are available at Chemist Warehouse, selected local pharmacies, and online across New Zealand, making H. pylori testing in NZ more accessible and proactive.