Your chances of getting stomach cancer are higher if you have had a stomach infection caused by bacteria called Helicobacter pylori, which also causes ulcers in the stomach. You are also more likely to get stomach cancer if you:
Are a man
Are older than 50 years of age
Have a close relative who has had stomach cancer
Smoke cigarettes
Abuse alcohol
Are an African American, Hispanic American, Asian American or Pacific Islander
Have stomach polyps (small growths in the lining of your stomach)