Background
Colorectal Cancer (CRC) makes up a large proportion of cancer in the United States. CRC occurs in two locations, the colon and rectum. It is the 3rd most diagnosed type of cancer in the U.S., and in 2021 it is estimated there will be just over 100,000 cases of colon cancer and around 45,000 cases of rectal cancer leading to more than 50,000 deaths (American Cancer Society, 2021).
Colorectal cancer causes the third most cancer-related deaths among men and women separately, and if you combine into one population it causes the second most. The actual death rate of CRC has decreased in the last couple of decades due to increase in effectiveness and quantity of screenings (e.g. colonoscopy) which look for signs of CRC, including polyps (small clump of cells that can be cancerous) located in the rectum/colon (Stewart and Carter-Templeton, 2017). Even with the ability to screen and look for physical changes in the colon/rectum, many people still die from CRC and it is a major problem facing the field of oncology and medicine in general.
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