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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Colon Cancer Screening

Colonoscopy is one of the best ways to screen for colon cancer. People who have a normal colonoscopy have a very low risk of developing colon cancer in the following decade.

Most experts believe that after a normal colonoscopy, you can wait ten years before your next colon cancer screening test. At that point, you can choose between several different tests, including

  • repeat colonoscopy

  • computed tomography, also called "virtual" colonoscopy

  • flexible sigmoidoscopy

  • stool cards (fecal occult blood tests)

  • barium enema.

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