Helicobacter pylori. It is a bacterium found in the stomach or duodenum that is related to many health conditions, especially the gastric ulcers. Key Benefits H.pylori Distinct: H.pylori causes distinct forms of gastritis that is chronic active, chronic persistent, and atrophic in person and children. Infected People: Many infected people do not develop symptoms related to the infection. Infected People in Developing Countries: Most of the person are infected in developing countries. Industrialized: In industrialized countries, H.pylori exists about 20% of people under 40 years of age and 50% of those more than 60 years. Experts Opinion: Some experts has an opinion that H.pylori is carcinogenic to the stomach just as cigarette smoking is to the lungs. Presence Bacterium: The presence of the bacterium is the strongest and most independent risk factor for gastric cancer. Accurate diagnosis in important for proper treatment.