BASEBiological Archive
for Science & Education
Search
HomeExploreH. pylori infection
Disease

H. pylori infection

Helicobacter pylori infection

Stomach infection with Helicobacter pylori, a common cause of peptic ulcers that can be cleared with antibiotic treatment.

NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES IDENTIFIERH. pylori infectionView source record ↗

Overview

EXPLORE BY LEVEL

H. pylori is a bacterium that can infect the stomach and cause ulcers. Breath and stool tests can show whether it is there now.

Quick Facts

AT A GLANCE
CauseHelicobacter pylori
Tests for current infectionUrea breath test, stool antigen test, endoscopic biopsy

Follow the Connections

See how H. pylori infection links to other biological records.

Open network
OrganismHelicobacter pyloricaused byBiomarkerH. pylori antibodiesmarker for
All 2 Structured Connections
H. pylori infection · DiseaseCAUSED BY →Helicobacter pylori · Organism
H. pylori antibodies · BiomarkerMARKER FOR →H. pylori infection · Disease

Recommended Reading

Trusted references for learning more about H. pylori infection.

guideDiagnosis of Peptic Ulcers (Stomach or Duodenal Ulcers)National Institute of Diabetes and Digestive and Kidney Diseases guideHelicobacter pylori (H. pylori) TestsMedlinePlus Medical Tests databaseHelicobacter pylori (taxon 210)NCBI Datasets Taxonomy Browser
Research Claims

Test selection depends on whether current infection must be shown. Breath and stool antigen tests, or biopsy-based tests during endoscopy, reflect active infection; serology reflects exposure and is not suited to confirming eradication.

H. pylori blood antibody tests cannot distinguish active infection from past infection, so they are not commonly used for diagnosis.