How are colon polyps found?

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Daniel Labow, MD
Surgical Oncology
Generally colon polyps cause no symptoms, which is why we recommend regular screenings; however, they can cause bleeding or obstruction when large. The best screening method is colonoscopy, through which your doctor can find and remove polyps before they become cancerous. In addition, when colon cancer is found early, it is quite treatable.
Most colon polyps cause no symptoms. Larger ones can cause blood in the stool, but even they are usually asymptomatic. Therefore, the best way to detect polyps is by screening individuals with no symptoms. Several other screening techniques are available: testing stool specimens for traces of blood, performing sigmoidoscopy to look into the lower third of the colon or using a radiology test such as a barium enema or computed tomography (CT) colonography.

If one of these tests finds or suspects polyps, your doctor will generally recommend colonoscopy to remove them. Because colonoscopy is the most accurate way to detect polyps, many experts now recommend colonoscopy as a screening method so that any polyps found or suspected can be removed during the same procedure.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.