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?
Colon polyps are growths on the inner lining of the colon or rectum.

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

What causes colon polyps?
The exact cause is unknown, but factors such as genetics, diet, and age may contribute.

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

What are the symptoms of colon polyps?
Often there are no symptoms, but possible symptoms include bleeding, abdominal pain, or changes in bowel habits.

How are colon polyps diagnosed?
Diagnosis is typically made through colonoscopy, sigmoidoscopy, or other imaging tests.

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

How can colon polyps be prevented?
A healthy diet, regular exercise, and screening tests may help reduce the risk of developing colon polyps.

Are there different types of colon polyps?
Yes, there are several types, including adenomatous, hyperplastic, and inflammatory polyps.

Do all colon polyps require treatment?
Not all colon polyps require treatment, but removal is often recommended to prevent potential cancer development.

Article last updated on: 18th October 2025.
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