What are polyps and should you be concerned about them? Read on to understand the facts about how these growths are
detected and treated.
Colon polyps are abnormal tissue growths that occur in the lining of the large intestine. These growths are one of
the most common conditions of the colon and rectum, and affect 15–20% of the adult population. Although most polyps
are harmless (benign), some may turn cancerous. There is no way to predict if a polyp will become cancerous, so all
polyps should be removed as soon as they are detected. This underscores the importance of regular colon screening to
facilitate the early detection and
removal of polyps.
What kinds of polyps are there and how do I tell that I have them?
Polyps come in various shapes and sizes; some are flat, while others have a stalk. Most polyps cause no symptoms at
all. In some cases, polyps can cause bleeding, mucous discharge, change in bowel habits, or rarely, abdominal pain.
They can only be definitively detected during an examination of the colon. The two most common types of polyps are
hyperplastic polyps and adenomatous polyps.
- Adenomatous polyps contain dysplastic cells that may progress into cancer.
- Hyperplastic polyps were previously believed to be innocuous. However, recent
studies show that the presence of many hyperplastic polyps or one large one may lead to an increased risk of
How are polyps diagnosed?
Polyps can be
diagnosed by colonoscopy
, barium enema or computerised tomography (CT) colonoscopy. A colonoscopy is one
recommended form of diagnosis. The procedure involves inserting a long flexible tube via the anus into the colon. The
test serves two purposes. Apart from screening, the procedure allows the doctor to remove detected polyps using a
special cutting wire that can be threaded through the tube-like device. The doctor can then send the removed tissue
samples for testing. Follow-up medical treatment or tests will be prescribed based on the nature of the polyp removed.
Can polyps recur after they are removed?
A polyp will not recur after it is completely removed. However, new polyps reoccur in up to 25% of those who
previously had polyps. This group of patients will require repeat colonoscopy to find and treat any new polyps.