Hidden stomach germs found during routine colonoscopy in healthy adults

This study looks at how common Helicobacter pylori (a stomach germ linked to cancer) is in adults without stomach symptoms who are already getting a screening colonoscopy. About 1,000 participants will also have a stomach exam (gastroscopy) during the same visit, with small tissue samples taken to check for the germ and early cancer signs. The goal is to learn how often these hidden risks occur and if they are linked to lifestyle or family history.