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Colon Cancer Surges in Young Adults: Screening Age Lowered
9 Mar
Summary
- Colorectal cancer is now the leading cause of cancer death in those under 50.
- Screening age lowered to 45 in the US due to rising early-onset cases.
- Genetic factors like Lynch syndrome may require screening in early 20s.
Colorectal cancer has become the leading cause of cancer death for individuals under 50, prompting a significant shift in public health recommendations. In 2023, this marked a critical point for cancer mortality in younger demographics.
In response, the U.S. Preventive Services Task Force has officially lowered the recommended age to begin colorectal cancer screening from 50 to 45. This change reflects a concerning 79 percent global increase in cancers diagnosed in people younger than 50 between 1990 and 2019.
While lifestyle factors like Western diets and sedentary habits are considered contributors, genetic factors play a crucial role for some. Individuals with conditions such as Lynch syndrome may need to start screening as early as their early 20s.
Other risk factors include inflammatory bowel diseases and a personal or family history of colorectal cancer or polyps, especially if diagnosed before age 50. Persistent symptoms like changes in bowel habits, rectal bleeding, or abdominal pain lasting over two months also warrant prompt medical evaluation, though this would be considered diagnostic rather than screening.
