Stomach Cancer Risk Factors
Stomach cancer risk factors are linked to bacteria. Infection with the bacteria Helicobacter pylori appears to cause stomach cancer. These bacteria cause gastritis and ulcers. If ulcers remain untreated, they cause further damage to the cells in the lining of the stomach and can lead to stomach cancer. Similarly, a diet rich in smoked foods, salted fish, meat, pickled vegetables, and foods that contain high nitrates and nitrites are a major cause of stomach cancer. Other risk factors for stomach cancer also include lifestyle and obesity. Type A blood is also a risk factor for stomach cancer, but it is still unknown why.