What causes stomach cancer?

Many risk factors: Risk factors include- h. Pylori infection (a stomach bacteria responsible for ulcers), high intake of smoked or salted foods, obseity, family history of certain inherited cancers, men > 55 years, black, hispanic or Asian ethnicity, excessive smoking and alcohol use, prior gastric surgery.

Several risk factors: Stomach cancer happens when a mutation in one of the stomach's normal cells leads to cancerous transformation. Although no one knows exactly why this mutation happens, there are several risk factors for stomach cancer including asian ethnicity, smoking, a family history of stomach cancer, and infection with the bacteria h.Pylori.

Unknown: Stomach cancer is uncommon in the us, and more common in some asian countries. Can be an association with h. Pylori gastritis & eating more smoked foods and smoked meats possibly related.