A new report reveals that a third of colon cancer cases now occur in the rectum. Take these steps to protect yourself at any age.
Business Insider
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Monday, March 2, 2026
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United States
A new medical report highlights a concerning shift in colorectal cancer patterns, revealing that approximately 33% of all colon cancer cases are now located in the rectum. This trend is particularly pronounced among younger adults, making colorectal cancer the deadliest form of cancer for individuals under the age of 50. Researchers are currently focused on understanding why rectal cases specifically are driving this surge. The report emphasizes the importance of recognizing early symptoms—such as changes in bowel habits, rectal bleeding, or unexplained weight loss—and suggests that lifestyle factors, including diet and environmental exposures, may be contributing to the rising incidence in demographics previously considered low-risk.