What are the risk factors for stomach cancer?

According to the U.S. National Cancer Institute, several factors can raise the risk of stomach (gastric) cancer, although having them does not mean you will develop the disease. Long-term infection of the stomach lining with Helicobacter pylori (H. pylori) is a major risk factor. Others include chronic atrophic gastritis, older age, being male, and smoking, as well as a diet low in fruits and vegetables or high in salted, smoked, or poorly preserved foods. A family history of stomach cancer or certain inherited genetic conditions can also increase risk. This is general information, not personal medical advice.

Last updated: 2026-07-13

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