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Is an exam used to detect changes or abnormalities in the large intestine (colon) and rectum.

During a colonoscopy, a long, flexible tube (colonoscope) is inserted into the rectum.

 

A tiny video camera at the tip of the tube allows the doctor to view the inside of the entire colon.

Why it's done

Definition

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  • Investigate intestinal signs and symptoms.

  • Screen for colon cancer. 

  • Look for more polyps.

Prep

Follow a special diet the day before the exam. 

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Take a laxative.

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Use an enema kit.

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Adjust your medications.

Colonoscopy
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