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  "path": "/health/colon-cancer-young-adults-causes",
  "publishedAt": "2026-03-02T20:52:32.000Z",
  "site": "https://www.gbnews.com",
  "tags": [
    "latest findings",
    "Fatty liver disease: What subtle hints your body could be sending you 'below the ribs'",
    "Popular diet linked to 30% lower risk of five cancers in ‘high-quality’ study",
    "Cancer warning: 'The symptoms I ignored when I was 20 turned out to be a brain tumour'",
    "The GB News Editorial Charter"
  ],
  "textContent": "\n\n\nFresh data released on Monday by the American Cancer Society reveals a striking transformation in who develops colorectal cancer, with close to half of all newly diagnosed cases now occurring in individuals younger than 65.\n\nThis represents a fundamental change in the profile of a condition long considered an affliction of the elderly.\n\n###\n\n\n\n\nWhile diagnosis rates among those aged 65 and above have fallen consistently since the mid-1980s, largely owing to effective screening programmes that detect precancerous growths and early-stage tumours, the picture for younger adults tells a different story.\n\nResearch published in recent years has documented a rising incidence among those under 50.\n\n###\n\n\n\n\nTRENDING\n\nStories\n\nVideos\n\nYour Say\n\n###\n\n\n\n\n###\n\n\n\n\n###\n\n\n\n\nThe latest findings indicate that rates among 50 to 64-year-olds also climbed between 2013 and 2022, with rectal cancer specifically increasing across all age groups following years of decline.\n\nScientists have identified a phenomenon termed the \"birth-cohort effect\" driving these trends, whereby successive generations since those born in the 1950s face progressively higher risk of developing the disease.\n\nThe statistics are sobering: an individual born in 1990 faces double the likelihood of developing colon cancer compared with someone born four decades earlier and quadruple the risk of rectal cancer.\n\n### LATEST DEVELOPMENTS\n\n\n\n\n  * Fatty liver disease: What subtle hints your body could be sending you 'below the ribs'\n  * Popular diet linked to 30% lower risk of five cancers in ‘high-quality’ study\n  * Cancer warning: 'The symptoms I ignored when I was 20 turned out to be a brain tumour'\n\n\n\n###\n\n\n\n\nThe study additionally revealed that newer cases predominantly involve cancers located in the distal colon and rectum, rather than other colonic regions more typically affected in older patients.\n\nThe distinctive anatomical location of these tumours, combined with escalating rates among younger cohorts, points towards factors unique to recent generations.\n\nResearchers suspect that environmental exposures emerging from the 1950s onwards may bear partial responsibility for this troubling pattern.\n\nCurrent scientific investigation centres on alterations to the gut microbiome and inflammatory responses linked to contemporary products.\n\n###\n\n\n\n\n###\n\n\n\n\nUltraprocessed foods, microplastics and antibiotics have emerged as key areas of scrutiny, according to the study.\n\nThese modern substances may be triggering changes within the digestive system that promote cancer development in ways not experienced by earlier generations.\n\nThe research suggests that lifestyle and environmental factors characteristic of post-war modernity could be fundamentally reshaping disease risk for those born into this era.\n\nMedical professionals advise that routine screening should commence at age 45 for those facing average risk, with colonoscopy remaining the gold standard examination.\n\n###\n\n\n\n\n###\n\n\n\n\nIndividuals with relatives who developed colon cancer or precancerous polyps before 60 should begin checks a decade prior to the age at which their family member was affected.\n\nThe research uncovered that three-quarters of patients under 50 received diagnoses at stage 3 or 4, attributable both to the absence of routine screening and delayed, accurate diagnosis.\n\n###\n\n\n\n\nDr Andrea Cercek, co-director of the Centre for Young Onset Colorectal and Gastrointestinal Cancer at Memorial Sloan Kettering Cancer Centre in New York, noted that her patients frequently presented with anaemia or abdominal pain initially attributed to other conditions.\n\nThose under 45 should remain vigilant for symptoms including tiredness, unexplained weight loss, altered bowel habits and blood in stools.\n\n**Our Standards:The GB News Editorial Charter **",
  "title": "Almost 50% of new colon cancer cases now hit younger adults – scientists warn of three potential causes"
}