Often starting as a growth or polyp on the inner lining of the colon or rectum, colorectal cancer is a disease in which cells in the colon or rectum grow out of control.
Colorectal cancer often presents without symptoms, but can be treated early or even prevented through regular screening. Recommended for most adults beginning at 50 years old, a colonoscopy allows doctors to find and remove polyps before they develop into colorectal cancer.
