Research
Colorectal cancer is rising again after 20 years, and scientists don't know why
The Brief
- A major new study reports colorectal cancer rates in the US are rising again after more than 20 years of decline.
- The increase is no longer limited to younger adults and appears across nearly every age group under 70, including some older Americans.
- The source says scientists do not yet know why the rates are rising.
Why it matters
The reversal of a two-decade decline in a common cancer changes which age groups screening and risk research should focus on, and the unexplained cause leaves prevention guidance open.
Who’s affected
- clinicians and public health officials
- researchers in oncology and epidemiology
- adults in the US concerned about colorectal cancer risk
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…
Timeline
Study findings on rising US colorectal cancer rates reported in a ScienceDaily release
Health & Medicine News -- ScienceDaily
Colorectal cancer is rising again after 20 years, and scientists don't know why