This can happen to due inflammation of the large intestine, or mutations in certain genes that cause cells to continue dividing when they normally wouldn’t. Developing anemia due to iron deficiency and prolonged bleeding. Bleeding from polyps can deplete your body of iron, making it difficult to produce red blood cells and carry oxygen throughout your body, leading to symptoms like fatigue, weakness and shortness of breath.Ĭolon polyps develop when cells grow and divide in an abnormal way inside the colon or rectum, leading to a growth that may become big enough to obstruct the bowel.Large colon polyps are more likely to cause pain because they may partially obstruct your bowel. Stomach pain, abdominal cramping and aching/tenderness near the bowels.Blood in your stool or other changes in your poop color, such as dark red streaks or black stools.You may notice blood on your underwear or on toilet paper after a bowel movement. Rectal bleeding (which can also be caused by other conditions, not polyps, including hemorrhoids, or tiny tears in the tissue of the anus).When they do occur, the most common colon polyps symptoms include: ( 8) Not everyone with colon polyps will be aware that they have them in fact, most of the time colon polyps don’t cause any noticeable symptoms. When viewed under a microscope, polyps that are only mildly abnormal are said to have low-grade (mild or moderate) dysplasia, while polyps that are more abnormal and look more like cancer are said to have high-grade (severe) dysplasia. Most are tubular adenomas that are small (less than one-half inch), while some are larger adenomas with a villous growth pattern that are more likely to have cancers develop in them. However, most patients with adenoma polyps will never develop colon cancer.Īdenomas can have several different growth patterns, including: tubular and villous, or a mixture of both (called tubulovillous adenomas). ( 6)Īdenoma polyps are not a type of cancer, but they are considered pre-cancerous (meaning that they can turn into cancers). According to the American Cancer Society, “An adenoma is a polyp made up of tissue that looks much like the normal lining of your colon, although it is different in several important ways when it is looked at under the microscope.” ( 5) It’s estimated that two-thirds of colon polyps are the precancerous type called adenomas, and that only about 5 percent of adenomas progress to cancer. ![]() Determining colon polyp size is an important part of diagnosis because larger polyps pose a greater risk of causing cancer.Īn adenoma (a type of neoplastic polyp) is a tumor of glandular tissue.
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