Colorectal Cancer

Cause

The exact cause of colorectal cancer is not known. Most cases begin as small growths, or polyps, inside the colon or rectum.

Colon polyps are very common. Very few of them turn into cancer. If they are found early, usually through routine screening tests, they can be removed before they turn into cancer.


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Author: Douglas Dana
Shannon Erstad, MBA/MPH		Last Updated: March 19, 2007
Medical Review: Adam Husney, MD - Family Medicine
Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology
Arvydas D. Vanagunas, MD - Gastroenterology

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