欧博百家乐Colon Polyps: Symptoms, Causes, Types & R
What are the symptoms of colon polyps?
Most colon polyps, and many colorectal cancers, won’t cause any symptoms. This is why screening — testing for diseases before you have symptoms — is so important. Usually, by the time you do have symptoms, the polyp has already turned into cancer.
Possible symptoms, though uncommon, include:
What causes colon polyps?Most colon polyps are sporadic, which means they occur randomly. However, some people have hereditary syndromes, conditions passed down through their families, that cause colon polyps. These syndromes can cause large numbers of certain types of polyps and can carry a higher cancer risk.
What is the main cause of colon polyps?Genetic mutations are the main cause of colon polyps. These are errors in the genetic code that your cells use to reproduce themselves. The cells in your colon lining replace themselves often, so there are more chances for errors to occur. When their code changes, they grow and behave differently.
Some gene mutations are passed down through families (these are hereditary syndromes). Others appear to be random, but they probably have multiple contributing causes. Researchers believe that sporadic colon polyps may be partly inherited and partly triggered by environmental risk factors.
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What are the contributing causes of colon polyps?Genetics: You’re more likely to have sporadic colon polyps if you have a first-degree relative who’s had them. You may also have colon polyps associated with a specific hereditary syndrome.
Genetic disorders that cause colon polyps include:
Environment: Environmental risk factors are factors related to where and how you live that can affect your colon health. They include your physical environment, social environment and lifestyle habits.
Environmental risk factors that may contribute to colon polyps include:
Aging.
Smoking.
Heavy alcohol use.
High-fat, low-fiber diet.
Lack of exercise.
Obesity.
Diabetes.
Inflammatory bowel disease.
Exceptions: Inflammatory pseudopolyps aren’t true polyps and aren’t caused by genetic mutations. They’re ulcers that healed to form bump-like scars that look like polyps. Chronic inflammation in your colon (colitis) is the usual cause of these ulcers. They’re often related to inflammatory bowel disease (IBD).