6/17/2008

For normal-risk individuals, colon cancer screening tests begin at age 50 and the preferred approach is a screening colonoscopy every 10 years; an alternate strategy consists of annual stool test for blood and a flexible sigmoidoscopic exam every three to five years. Screening colonoscopy needs to be available at more frequent intervals for individuals at high risk for colon cancer. -- American College of Gastroenterology

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