Best answer: Why is colorectal cancer more common in Western societies?


Is colon cancer more prevalent in certain areas of the world?

Developed countries are at the highest risk of colon and rectal cancer. For colon cancer, Southern Europe, Australia/New Zealand, and Northern Europe are the regions of highest incidence. For rectal cancer, these regions are Eastern Europe, Australia/New Zealand, and Eastern Asia.

Which region is most likely to be at risk for colorectal cancer?

Most people diagnosed with colorectal cancer are over the age of 50, and the risk increases with age. More men than women develop colorectal cancer. The colorectal cancer incidence rate is highest in North America, northwestern Europe and Australia.

Why is colon cancer more common in males?

Conclusions. As there are minimal sex differences in the data from routes to diagnosis to survival, the higher mortality of colorectal cancer in men appears to be a result of exogenous and/or endogenous factors pre-diagnosis that lead to higher incidence rates.

What country has lowest rate of colon cancer?

Epidemiological data supports the fact that the lowest incidence rates of colorectal cancer are found in India, Asia, and Africa [50–53].

What happens if they find cancer during a colonoscopy?

Usually if a suspected colorectal cancer is found by any screening or diagnostic test, it is biopsied during a colonoscopy. In a biopsy, the doctor removes a small piece of tissue with a special instrument passed through the scope. Less often, part of the colon may need to be surgically removed to make the diagnosis.

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How do I know if I had colon cancer?

Blood in the stool that is either bright red, black or tarry. Unintentional weight loss. Stools that are narrower than usual. Diarrhea, constipation, or feeling that the bowel does not empty completely.

What foods cause polyps in the colon?

Compared with people whose diets contained the lowest amounts of pro-inflammatory foods, people whose diets contained the highest amounts of pro-inflammatory foods — such as processed meats and red meat — were 56 percent more likely to have one of these polyps, also called an “adenoma,” according to the new study.