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Symptom Checker

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

Colon Cancer Screening

Your risk of colon cancer is moderately increased if two or more first-degree relatives (father, mother, sister or brother) were diagnosed with colon cancer or colon polyps. You should have your first colonoscopy at age 40, or at least ten years before the age at which the youngest family member was diagnosed. Colonoscopy should be repeated every five years.


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