Researchers continue to search for stomach cancer causes. While scientists have found certain factors that increase a person's risk for developing the disease, these are not the same as causes of stomach cancer. Not everyone with these risk factors will develop the cancer, and some people who have none of the known risk factors for stomach cancer still get the disease. People who think that they may be at risk for developing stomach cancer should discuss this concern with their doctor. Doctors can suggest ways to reduce the risk of stomach cancer and can plan an appropriate schedule for checkups.