is the cause of colon cancer?
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The exact cause of colorectal cancer is not known, but certain risk factors are strongly linked to the disease, including diet, tobacco smoking and heavy alcohol use. Also, people with certain hereditary cancer syndromes or a family history of colorectal cancer have a high risk of developing the disease.
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Though not as common, a person may experience excessive smelly gas due to the presence of cancer of the colon. Cancerous polyps or tumors can form blockages that cause gas to build up in the intestine. One early warning sign is when changes in diet or medication do not stop foul-smelling gas from occurring.
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['Older age.', 'A personal or family history of cancer.', 'Using tobacco.', 'Obesity.', 'Alcohol.', 'Some types of viral infections, such as human papillomavirus (HPV)', 'Specific chemicals.', 'Exposure to radiation, including ultraviolet radiation from the sun.']
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Different types of cancer can cause bowel obstructions, including stomach, colorectal, small intestine, uterine, prostate, bladder and ovarian cancers. Cancers that spread to the abdomen and advanced cancers that press against the colon and small intestine as they grow can also cause bowel obstruction.
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Gene involved in colorectal cancer also causes breast cancer. Rare mutations in the NTHL1 gene, previously associated with colorectal cancer, also cause breast cancer and other types of cancer.
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Abstract. Smoking is a well-known source of food contaminated caused by carcinogenic polycyclic aromatic hydrocarbons. Epidemiological studies indicates a statistical correlation between the increased occurrence of cancer of the intestinal tract and the frequent intake of smoked foods.
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Polyps in the colon or rectum Most colorectal cancers start as a growth on the inner lining of the colon or rectum. These growths are called polyps. Some types of polyps can change into cancer over time (usually many years), but not all polyps become cancer.
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Colon cancer Mutations in certain genes can cause cells to continue dividing even when new cells aren't needed. In the colon and rectum, this unregulated growth can cause polyps to form. Polyps can develop anywhere in your large intestine. There are two main categories of polyps, non-neoplastic and neoplastic.
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Diet is just one of the lifestyle factors that influence the risk of developing cancer. Smoking, obesity, alcohol, sun exposure and physical activity levels are also important. Although some foods can affect cancer risk, there is no evidence that specific foods can cause or cure cancer.
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Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
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['Colorectal cancer.', 'Colonic polyps - extra tissue growing in the colon that can become cancerous.', 'Ulcerative colitis - ulcers of the colon and rectum.', 'Diverticulitis - inflammation or infection of pouches in the colon.', 'Irritable bowel syndrome - an uncomfortable condition causing abdominal cramping and other symptoms.']
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A family history of some other types of cancer such as colorectal and breast cancer is linked to an increased risk of ovarian cancer. This is because these cancers can be caused by an inherited mutation (change) in certain genes that cause a family cancer syndrome that increases the risk of ovarian cancer.
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Colon cancer is the second most deadly form of cancer after lung cancer. But it's one of the easiest diseases to detect, and in its earliest stages, it's also one of the most curable. If you've been diagnosed with colon cancer, or if you're at risk for the disease, it's time to learn everything you can.
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Colorectal cancer can occur in young adults and teenagers, but the majority of colorectal cancers occur in people older than 50. For colon cancer, the average age at the time of diagnosis for men is 68 and for women is 72. For rectal cancer, it is age 63 for both men and women.
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Bowel cancer risk But if some types of polyps (called adenomas) are not removed, there's a chance they may eventually become cancerous. Doctors believe that most bowel cancers develop from adenoma polyps. But very few polyps will turn into cancer, and it takes many years for this to happen.
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Some colon polyps are benign, which means they are not cancerous, but some can be precancerous or cancerous. The relationship of certain polyps to cancer is well established. Polyps can usually be removed during colonoscopy.
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These abnormal cells form a tumor. Causes of bladder cancer include: Smoking and other tobacco use. Exposure to chemicals, especially working in a job that requires exposure to chemicals.