
A colonic polyp is an abnormal growth of tissue on the inner lining of the large intestine (colon). While most polyps are benign (non-cancerous), certain types can develop into colorectal cancer over several years. Because it is difficult to determine which polyps might become dangerous just by looking at them, medical professionals typically remove them as a preventative measure.
Risk Factors: Who is Most Likely to Develop Polyps?
While anyone can develop polyps, the likelihood increases significantly based on certain factors:
- Age: The risk rises as you get older, particularly for those over age 50.
- Personal History: If you have had polyps in the past, you are more likely to develop new ones.
- Genetics and Family History: Having a close family member with a history of polyps or colon cancer increases your predisposition.
Symptoms and Detection
The primary challenge with colon polyps is that most do not cause any symptoms. This makes regular screening essential for early detection and prevention. When symptoms do occur, they may include:
- Rectal Bleeding: Noticing blood on your underwear or toilet paper.
- Stool Changes: Blood in the stool (which may appear bright red or very dark/tarry).
- Bowel Habit Changes: Persistent constipation or diarrhea lasting more than one week.
The Role of Colonoscopy
A colonoscopy is the most effective tool for both diagnosing and treating polyps. During this procedure, a doctor uses a flexible tube with a camera to examine the colon. If a polyp is found, it can be removed immediately—a process called a polypectomy—and then sent to a laboratory for testing to ensure no cancer is present.
