Colon Polyps

Colon polyps are growths on the inner lining of the colon (large intestine) or rectum. They are usually small, non-cancerous (benign), and can be found in people of all ages. However, as people get older, the risk of developing colon polyps increases.

Types of Colon Polyps

There are several types of colon polyps, including:

  • Hyperplastic polyps: These are the most common type and are usually small and non-cancerous.
  • Adenomatous polyps (adenomas): These are the most common type of precancerous polyp. They have the potential to develop into colorectal cancer over time if not removed.
  • Sessile serrated polyps: These are flat and can be difficult to detect. They have a higher risk of becoming cancerous than other types of polyps.
  • Inflammatory polyps: These occur in people with inflammatory bowel disease, such as ulcerative colitis or Crohn's disease.

Causes and Risk Factors

The exact cause of colon polyps is not known, but several factors can increase the risk of developing them, including:

  • Age: The risk of developing colon polyps increases with age.
  • Family history: Having a family history of colon polyps or colorectal cancer increases the risk.
  • Diet: A diet high in fat and low in fiber may increase the risk.
  • Lack of physical activity: A sedentary lifestyle can increase the risk.
  • Obesity: Being overweight or obese can increase the risk.
  • Smoking: Smoking can increase the risk of developing colon polyps and colorectal cancer.

Symptoms

Colon polyps often do not cause symptoms, but if they do, they may include:

Diagnosis and Treatment

Colon polyps are usually diagnosed through a:

  • Colonoscopy: A procedure that uses a flexible tube with a camera to visualize the colon and rectum.
  • Sigmoidoscopy: A procedure that uses a flexible tube with a camera to visualize the lower part of the colon and rectum.
  • Virtual colonoscopy (CT colonography): A non-invasive test that uses CT scans to create images of the colon and rectum.

Treatment for colon polyps usually involves:

  • Removal during a colonoscopy or sigmoidoscopy: Polyps can be removed using specialized tools, such as snares or forceps.
  • Surgical removal: In some cases, surgery may be necessary to remove the polyp and surrounding tissue.

Prevention

To reduce the risk of developing colon polyps, it is recommended to:

  • Eat a healthy diet high in fiber and low in fat
  • Exercise regularly
  • Maintain a healthy weight
  • Avoid smoking
  • Get regular colon cancer screenings, starting at age 50 (or earlier if there is a family history)

Frequently Asked Questions (FAQs)

What are colon polyps?
Growths on the inner lining of the colon or rectum.

Are colon polyps cancerous?
Most are benign, but some can become cancerous over time.

What causes colon polyps?
Genetics, diet, and other factors contribute to their formation.

What are the symptoms of colon polyps?
Often none, but can include bleeding, abdominal pain, or changes in bowel habits.

How are colon polyps diagnosed?
Colonoscopy, sigmoidoscopy, or barium enema.

Can colon polyps be removed?
Yes, usually during a colonoscopy.

How can colon polyps be prevented?
Healthy diet, regular exercise, and screening tests.

Who is at risk for colon polyps?
People over 50, with family history, or certain medical conditions.

Do colon polyps require treatment?
Yes, to prevent cancer and other complications.

Can colon polyps recur after removal?
Yes, which is why regular follow-up screenings are necessary.

Article last updated on: 25th June 2025.
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