Study Links Two Colon Polyps to Higher Bowel Cancer Risk

In March 2026, researchers found that the presence of two types of colon polyps together can increase the risk of bowel cancer significantly.

Key Points

Study Finding: Researchers found that individuals who have both adenomas and serrated polyps may face up to a fivefold higher risk of developing advanced precancerous bowel changes.
Bowel Cancer Overview: Bowel cancer, also known as colorectal cancer, is a major health concern and often develops from polyps that grow on the inner lining of the colon.
Types of Risky Polyps: Two specific polyp types, adenomas and serrated polyps, have the potential to gradually develop into cancer.
Colonoscopy Data Analysis: The study analysed more than 8,400 colonoscopy records to understand the relationship between polyp types and cancer risk.
Higher Risk with Combined Polyps: People who had both types of polyps, referred to as synchronous lesions, showed a significantly higher likelihood of developing advanced precancerous changes.
Common Occurrence: Nearly half of the patients with serrated polyps were also found to have adenomas, indicating that this high-risk combination is more common than previously thought.
Separate Cancer Pathways: Researchers suggested that adenomas and serrated polyps may represent two distinct cancer pathways that can occur simultaneously.
Faster Progression: The study indicated that serrated polyps may develop into cancer faster than adenomas.
Importance of Early Detection: The findings highlight the need for early detection and regular colonoscopy screening to identify and remove polyps before they progress.