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Personal history of rectal cancer or adenomatous polyps. |
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Family history of at least one family member (father, mother, brother or sister) with rectal cancer or adenomatous polyps. |
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Family history of breast, ovarian, uterine cancer and other cancers. |
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Personal history of inflammatory bowel disease such as Ulce |
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Also severe illness conditions such as severe burns, violent accident and other intensive care patients are the risk factors of developing colon cancer. |
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In addition, the infection with the bacteria named Helicobacter pylori has been recently found to be an important factor of colon cancer. |