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Etiology of stomach cancer

  • Chronic infection with Helicobacter pylori
  • Smoking 
  • Stomach resection for benign tumors causes an increase frequency of cancer in the remaining stomach at the anastomosis.
  • In very rare cases, stomach cancer (linitis plastica) is due to a genetic disposition.

The role of diet

Diets containing a high content of plant products, as well as high intake of antioxidants is related to a reduced risk for developing stomach cancer. A high intake of animal products is related to an increased risk.

Stomach cancer occurs more frequently in Japan, Korea, and China compared to the rest of the world. Strongly salted and smoked food is believed partially to be the cause. Water sources are also speculated to cause stomach cancer.

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