Colonoscopy

Risks

There is a small chance for problems from a colonoscopy. The scope or a small tool may tear the lining of the colon or cause bleeding.

People who have certain types of heart murmurs, artificial heart valves, or past infections of a heart valve will need antibiotics before and after the test to prevent infection. An irregular heartbeat may occur during the test but usually goes away without treatment.

After the test

After the test, call your doctor immediately if you:

  • Have heavy rectal bleeding.
  • Have severe belly pain.
  • Develop a fever.
  • Are very dizzy.
  • Are vomiting.
  • Have a swollen and firm belly.

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Author: Monica RhodesLast Updated: September 1, 2006
Medical Review: Kathleen Romito, MD - Family Medicine
Peter J. Kahrilas, MD - Gastroenterology

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Topic Contents
 Test Overview
 Health Tools Click here to view Health Tools.
 Why It Is Done
 How To Prepare
 How It Is Done
 How It Feels
Arrow PointerRisks
 Results
 What Affects the Test
 What To Think About
 References
 Credits