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  "path": "/news/2026-05-screening-sigmoidoscopy-linked-colorectal-cancer.html",
  "publishedAt": "2026-05-11T17:00:06.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "A randomized controlled trial of adults in Norway found that a single screening sigmoidoscopy led to a sustained reduction in colorectal cancer (CRC) incidence for more than two decades after screening, with women seeing a more modest risk reduction than men.",
  "title": "Single screening sigmoidoscopy linked to lower colorectal cancer risk two decades later"
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