doctors recommend colonoscopy based on age, not whether you have any factors that might indicate colon cancer. That's not completely true. As a Crohn's Disease

doctors recommend colonoscopy based on age, not whether you have any factors that might indicate colon cancer. That's not completely true. As a Crohn's Disease sufferer, by doctor has been making me get them since I was a teenager. The indications are high for me. For "normal" people, the general wisdom (apparently based on intuition more than any quantitative analysis) has been that the risks catch up with the general population around 50.