HealthScience DailyColorectal cancer is rising again after 20 years, and scientists don't know why
Colorectal cancer rates in the US have risen for the first time in over 20 years, and researchers say the increase is now affecting all age groups, not just younger adults.
Colorectal cancer is making an alarming comeback in the United States after more than 20 years of declining rates, and the increase is no longer limited to younger adults. A major new study found rising rates across nearly every age group under 70, including older Americans who have historically benefited most from cancer screening.
A major US study found colorectal cancer rates rose in 2023 for the first time in more than two decades, reversing a long decline.
The age-adjusted rate climbed from 36.7 to 38.3 cases per 100,000 people in 2023, with increases seen across every age group up to 65 to 69.
Researchers say a birth cohort effect means people born in the 1960s and later are carrying elevated risk into middle age and beyond.
Experts say people born from the 1960s onward appear to face higher risk as they age, so talk to your GP about when to start screening if you haven't already.
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