What do you think the cause of stomach cancer is?.. and don't tell me it's the bacteria because my mother didn't have any of the risk factors including the bacteria. My mother was 49 and 5'8. She weighed about 190 pounds. She was a white American living in Wisconsin and there were nothing in her medical history that had to do with this cancer. She had part of her esophagus removed at the Mayo Clinic. Since she had her esophagus removed maybe it was actually esophageal cancer which is pretty similar but I'm think it was stomach cancer. I know you'd think I'd know exactly what cancer it is but I didn't really pay that much attention through the whole process and now my mother died while I'm going to graduate high school next year. I just want some answers.