How effective is bowel cancer screening?

Bowel cancer screening is one of the most effective ways to prevent and detect cancer early. By identifying and removing small changes in the bowel before they become cancerous, screening can significantly reduce your long-term risk. When bowel cancer is found through screening, it's usually at a much earlier stage — meaning treatment is simpler, more successful, and far more likely to be curative. With regular screening and careful follow-up, most cases of bowel cancer can be prevented altogether.