Why are more young adults getting colon cancer?
Colorectal cancer statistics, 2026
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Rectal cancer now accounts for 32% of all colorectal cancers, up from 27% in the mid-2000s.
Historically, colon cancers were more common than rectal cancers—this reversal suggests a fundamental shift in where tumors develop, possibly tied to gut microbiome changes or dietary toxins.
Practical Takeaways
If you’re under 50 and have symptoms like rectal bleeding, persistent bloating, or unexplained weight loss, don’t wait—push for a colonoscopy or FIT test.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Rectal cancer now accounts for 32% of all colorectal cancers, up from 27% in the mid-2000s.
Historically, colon cancers were more common than rectal cancers—this reversal suggests a fundamental shift in where tumors develop, possibly tied to gut microbiome changes or dietary toxins.
Practical Takeaways
If you’re under 50 and have symptoms like rectal bleeding, persistent bloating, or unexplained weight loss, don’t wait—push for a colonoscopy or FIT test.
Publication
Journal
Ca
Year
2026
Authors
R. Siegel, N. S. Wagle, J. Star, Tyler B Kratzer, Robert A. Smith, A. Jemal
Related Content
Claims (6)
Over the last 20 years, the number of new cases of colorectal cancer in people under 50 has roughly doubled compared to earlier rates.
Since 2013, the number of new colorectal cancer cases per year has risen by 3% each year among U.S. adults aged 20 to 49, while cases have decreased in older adults.
In the United States, rectal cancer now makes up a larger share of all colorectal cancer cases than it did in the mid-2000s, primarily because more younger adults are being diagnosed with rectal cancer, while cancers in the upper part of the colon have become relatively less common.
Since 2004, the number of deaths from colorectal cancer has risen by 1% each year among people under 50 in the United States, even as deaths from this cancer have decreased in older adults. This suggests that more younger people are being diagnosed and dying from the disease.
People born after 1950 have a higher risk of developing colorectal cancer at a young age compared to earlier generations, suggesting that factors in their early environment or lifestyle, rather than aging or medical screening, are responsible for this trend.