Colon cancer is rising in young adults and doctors don’t fully know why

Colorectal cancer rates are falling among older adults, largely because of increased screening. But researchers are seeing a troubling shift in younger people, with more cases now appearing in adults under 50, including some in their thirties. A new nationwide study from Switzerland found that diagnoses in this age group have been steadily rising for decades, while younger patients are also more likely to receive a late-stage diagnosis.

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