The exact causes of colorectal cancer are not known. However, studies show that the following factors increase the likelihood. Having one or more of these factors does not guarantee a person will develop colorectal cancer. It just increase the chances.
Age– Although colorectal cancer is more likely to occur after age 50, it can occur at any age.
Diet– A diet that is high in fat, calories and alcohol and low in calcium and dietary fiber compared to diets that are low fat, high-fiber.
Polyps– Polyps, benign growth on the inner wall of the colon and rectum, appear to have the risk of developing into colorectal cancer.
Personal History– A person who has already had colorectal cancer may develop it a second time. Research studies also show that women with a history of ovarian, uterine or breast cancer have a somewhat increased chance of developing colorectal cancer.
Family History– First-degree relatives (parents, siblings, children) of a person who has had colorectal cancer have a higher-than-average risk of developing colorectal cancer themselves, especially if the relative developed the cancer at a young age.
Ulerative colitis– People with ulcerative colitis, a condition in which the lining of the colon becomes inflamed, have a higher
likelihood of developing colorectal cancer.
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