Do normal people have Helicobacter pylori?

Under normal circumstances, healthy individuals do not carry Helicobacter pylori. Detailed analysis is as follows:

Helicobacter pylori is a microaerophilic, spiral-shaped Gram-negative bacillus that colonizes the gastric mucosa and is not part of the normal bacterial flora. This bacterium possesses unique survival capabilities, making it the only known bacteria able to survive in the highly acidic environment of the stomach. Therefore, Helicobacter pylori typically does not exist in healthy individuals. People without Helicobacter pylori infection usually have normal gastric digestion function and an intact gastric mucosal barrier, allowing normal digestion and protective functions. These individuals generally do not require treatment targeting this bacterium, as its absence does not increase the risk of gastric diseases.

To maintain a Helicobacter pylori-free and healthy condition, attention should be given to daily dietary hygiene. When dining out or eating at home, it is advisable to consistently use serving chopsticks and spoons, and avoid sharing personal items such as bowls, chopsticks, cups, or toothbrushes to reduce the chance of exposure to infection sources. Hands should be thoroughly washed before meals and after using the toilet to prevent bacterial transmission via the hands into the mouth. Drinking water should be boiled before consumption, and food ingredients should be thoroughly washed and cooked to avoid consuming raw, cold, or unpasteurized foods. If a family member or close contact is diagnosed with Helicobacter pylori infection, precautions should be taken to prevent transmission, regular self-screening should be conducted, and medical evaluation should be sought promptly upon experiencing any gastric discomfort to avoid delays in intervention after infection.