Researchers have learned that some people are more likely than others to develop stomach cancer. Stomach cancer affects men twice as often as women.
Stomach cancer is more common in black people than in white people.
And What You Eat. People in these areas eat many foods that are preserved by drying, smoking, salting, or pickling. Scientists believe that eating foods preserved in these ways may play a role in the development of stomach cancer. Bacteria that may cause stomach inflammation and ulcers. Stomach ulcers do not appear to increase a person's risk of getting stomach cancer.