Adenomas are polyps that grow like a mushroom with a stalk. Sessile polyps grow without the narrow stalk and seem to lie flat against the wall of the colon. These polyps are also known as flat polyps. Both pedunculated and sessile polyps can turn into benign non-cancerous , precancerous and cancerous polyps. This is why screening is important! Most polyps can be safely removed during a colonoscopy, thus removing the risk of the polyp growing into cancer.
However, for some, polyps bleed. Bleeding may be intermittent. It is always important to notify your doctor if you notice blood in your stool. Talk to your doctor if you experience rectal bleeding, a change in bowel habits, pain, and anemia. This could mean you have a polyp and you need to be screened, or that you need additional surveillance.
Learn more about the symptoms of colorectal cancer. Some polyps grow into cancer, but others may not. Your cancer risk does increase with the size of the colon polyp, but there is no specific, generalized size that indicates a polyp is becoming cancerous. If you grow an advanced polyp, your doctor will likely ask you to return for a follow up sooner than normal.
Not all polyps will become cancerous, but it is important to remove them all to block the possibility. Although the polyps are generally non-cancerous, if you have IBD, you are at increased risk of colorectal cancer. Learn more about genetic syndromes. These polyps are a big deal! Approximately two-thirds of colon polyps are adenomas — that means 66 percent of all colon polyps are precancerous!
Adenomas are described by growth patterns, or microscopic descriptions a pathologist makes to determine how often you need to return for a colonoscopy. In this case radiation, chemotherapy or other therapies may be recommended. Contact Colorectal Surgical Associates at to schedule a colonoscopy for you or a member of your family.
Hemorrhoid Center Get relief now! Pelvic Floor Therapy Learn how it can help you. Posted on November 3 by Colorectal Surgical Associates. A hyper-plastic or inflammatory type is more common, but not pre-cancerous unless it is large. Adenomas are a type of polyp that can change into cancer and are known as precancerous.
An SSP or sessile serrated polyp is one which has a higher risk of becoming cancerous, and more screening tests may be indicated. Screening and early detection can help prevent the development or spread of these cancers. Some colon polyps may become cancerous. The earlier polyps are removed, the less likely it is that they will become cancerous.
You can greatly reduce your risk of colon polyps and colorectal cancer by having regular screenings. Certain lifestyle changes also can help:. Colon polyps care at Mayo Clinic. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version.
Overview A colon polyp is a small clump of cells that forms on the lining of the colon. Email address. First Name let us know your preferred name. Last Name. Thank you for subscribing Your in-depth digestive health guide will be in your inbox shortly. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry. Request an Appointment at Mayo Clinic. Share on: Facebook Twitter.
National Cancer Institute. Accessed Jan. Colon polyps. Feldman M, et al. Colonic polyps and polyposis syndromes. Elsevier;
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