Pronounced: hel-lick-o-back-ter pie-lor-ee in-fek-shun
H. pylori is a type of bacteria. It can infect the stomach and intestines and lead to:
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Bacteria can be spread from person to person. It can spread through contact with an infected person's:
It may also be spread through infected food or water.
Factors that may increase your chances of H. pylori infection include:
H. pylori may not cause symptoms. Problems cause by this infection can cause ulcer or gastritis. Symptoms of these conditions may include:
Your doctor will ask about your symptoms and past health. A physical exam will be done.
Tests may include:
The goal of treatment is to get rid of H. pylori. Antibiotics will treat the infection.
Damage to the stomach may take some time to heal. Symptoms may be managed with medicine such as:
Tests for H. pylori may need to be repeated. They will make sure the infection is gone. Scopes of the stomach may also be repeated to make sure the area is healing.
H. pylori may be spread through food and water. Steps to prevent this type of infection include:
American College of Gastroenterology
American Gastroenterological Association
Canadian Association of Gastroenterology
Canadian Digestive Health Foundation
Helicobacter pylori infection. EBSCO DynaMed website. Available at:
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Accessed January 28, 2021.
Travelers health: Helicobacter pylori. Centers for Disease Control and Prevention website. Available at: https://wwwnc.cdc.gov/travel/yellowbook/2018/infectious-diseases-related-to-travel/helicobacter-pylori. Accessed January 28, 2021.
Weyermann M, Rothenbacher D, Brenner H. Acquisition of Helicobacter pylori infection in early childhood: independent contributions of infected mothers, fathers, and siblings. Am J Gastroenterol. 2009;104(1):182-189.
9/22/2014 DynaMed's Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T114484/Helicobacter-pylori-infection : Fuccio L, Zagari RM, Eusebi LH. Meta-analysis: Can Helicobacter pylori eradication treatment reduce the risk for gastric cancer? Ann Intern Med. 2009;151(2):121-128.
Last reviewed March 2020 by
EBSCO Medical Review Board
Chelsea Skucek, MSN, BS, RNC-NIC
Last Updated: 1/28/2021