What H. Pylori Actually Is
Helicobacter pylori is a gram-negative bacterium that lives in the stomach lining. Roughly half the world's population carries it. Most never have symptoms, but in some people it breaks down the protective mucus layer, causing inflammation and ulcers.
Common symptoms include:
- Stomach pain. Often a gnawing or burning feeling, especially when the stomach is empty.
- Bloating. A sense of fullness or pressure in the abdomen.
- Nausea. Sometimes leading to vomiting.
- Loss of appetite. From the constant gastric discomfort.
- Frequent burping.
Untreated, H. pylori can cause:
- Peptic ulcers. Open sores in the stomach or the first part of the small intestine.
- Gastritis. Inflammation that can sometimes bleed.
Long-term, chronic H. pylori infection also raises the risk of stomach cancer, which is why eradicating it matters.
Confirming the Diagnosis
A positive test result is the start of the process, not the end. Your provider will want to confirm the diagnosis and pick the right treatment.
The three main tests for H. pylori are:
- Urea breath test. You drink a urea solution, and the test measures carbon dioxide in your breath. H. pylori breaks down urea into CO2. This is the standard non-invasive test.
- Stool antigen test. Detects H. pylori proteins in a stool sample. Also non-invasive and accurate.
- Blood test. Looks for antibodies. The downside: it can't tell whether the infection is current or already cleared.
- Endoscopy with biopsy. A scope down the throat to look at the stomach lining and take samples. Reserved for patients with concerning symptoms like bleeding or unexplained weight loss.
False positives can happen. Recent antibiotic use or proton pump inhibitors (PPIs) can also affect results, which is why your provider may ask you to stop these for a couple of weeks before testing.
Treatment
The standard treatment is a 10 to 14 day course called triple therapy: two antibiotics (typically amoxicillin and clarithromycin) plus a proton pump inhibitor like omeprazole or pantoprazole. In areas with rising clarithromycin resistance, quadruple therapy (adding bismuth) is increasingly the first-line choice.
Take every dose on schedule. Stopping early or skipping doses is the main reason H. pylori bounces back, and it makes the bacteria harder to treat next time.
Common side effects include nausea, diarrhea, abdominal pain, and a metallic taste. These usually settle within a few days. Severe or persistent side effects, especially severe diarrhea, warrant a call to your provider.
Diet and Lifestyle
Diet won't cure H. pylori, but it can ease symptoms during treatment.
What to avoid or reduce: Spicy foods, alcohol, and caffeine all irritate an inflamed stomach. Cut back during treatment.
What may help: Probiotic foods like yogurt and kefir can support gut flora and may reduce antibiotic side effects. Some studies suggest probiotics improve eradication rates modestly. Fibre-rich foods like whole grains and vegetables are generally good for digestion.
Hydration: Aim for plenty of water during treatment, especially if antibiotics are causing loose stools.
Stress: Stress doesn't cause H. pylori, but it can worsen GI symptoms. If your stomach feels worse when you're under pressure, that's not in your head.
Follow-Up Testing
Schedule a follow-up four to six weeks after you finish treatment to confirm the infection is gone. A urea breath test or stool antigen test is usually used. Don't take any PPIs in the two weeks before the test, since they can mask the bacteria and give a false-negative.
Watch for persistent stomach pain, ongoing nausea, vomiting, or signs of GI bleeding (black tarry stools, vomiting blood). Any of these need urgent medical attention.
Preventing Reinfection
H. pylori spreads mostly through contaminated food and water, and through direct contact with saliva, vomit, or fecal matter from an infected person. To reduce the chance of picking it up again:
Hygiene: Wash hands with soap and water after the bathroom and before meals. This is the single biggest thing you can do.
Food and water: Cook food to safe temperatures. Be careful with food and water from untrusted sources when travelling.
Family: If household members have GI symptoms, suggest they get tested. H. pylori often clusters within families.
Kitchen: Clean surfaces and utensils after preparing raw food. If your tap water quality is questionable, use bottled or filtered.
Bottom Line
A positive H. pylori test isn't an emergency, but it does need treatment. Confirm with your provider, complete the full antibiotic course, then test again a month later to make sure it's gone. Most people only need one round of treatment to clear it.
FAQ
- What is H. pylori?
A spiral-shaped bacterium that lives in the stomach lining. It can cause gastritis, ulcers, and over time raises the risk of stomach cancer. - How did I get it?
Usually through contaminated food or water, or direct contact with saliva or fecal matter. It often spreads within households. - What symptoms should I watch for?
Stomach pain (often gnawing or burning), bloating, nausea, loss of appetite, frequent burping. Vomiting blood or dark tarry stools are red flags and need urgent care. - Can I treat H. pylori without antibiotics?
No. Diet and supplements can help symptoms but won't clear the infection. Antibiotics are required. - Is it contagious?
It can spread within families and close contacts, but it's not highly contagious like a cold or flu. Good hygiene reduces transmission. - How long is treatment?
Usually 10 to 14 days of antibiotics plus a PPI. Retest about four to six weeks after finishing. - What if my symptoms don't improve?
Call your provider. The infection may not have cleared, or you may need a different antibiotic combination. - Are probiotics safe during treatment?
Yes, and they may help with antibiotic side effects. Check with your provider before adding new supplements.
Disclaimer: This blog post is intended for educational purposes only and should not be taken as medical advice. Always consult your healthcare provider for personal health concerns.