Colon cancer, is also known as colorectal cancer. Cancer is a disease in which cells in the body grow out of control. When cancer starts in the colon or rectum, it is called colorectal cancer.
According to the American Cancer Society, colorectal cancer is the third most common cancer diagnosed in both men and women in the United States (excluding skin cancers). Estimates for the number of colorectal cancer cases in the United States for 2021 are:
According to the Centers for Disease Control and Prevention, some of the risk factors for colorectal cancer include:
Colon cancer stages are the way doctors categorise how much cancer is in the body as well as how far it has spread. Colon cancer stages help doctors to determine how serious the cancer is as well as how best it can be managed and treated. Colon cancer stages are also used to best understand survival statistics.
Colon cancer stages are as follows:
Stage 0 is the earliest stage of colorectal cancer. As the stage numbers increase, the risk becomes higher and means that the cancer has spread further. The lower the number, the lower the risk of spreading. Prevention is the best cure when it comes to treating colorectal cancer.
Let's go through the colon cancer stages in more depth.
Stage 0: This is the early stage and means that the cancer is located in one place. It has not yet spread.The cancer cells are only in the mucosa, or the inner lining, of the colon or rectum.
Stage I: The cancer has begin to replicate and spread, during stage 1, the cancer begins to invade muscular layers of the colon and/or rectum.
Stage IIA: The cancer has grown through the wall of the colon or rectum but has not spread to nearby tissue or to the nearby lymph nodes.
Stage IIB: The cancer has grown through the layers of the muscle to the lining of the abdomen. It has not spread to the nearby lymph nodes or elsewhere.
Stage IIC: The tumor has spread through the wall of the colon or rectum and has grown into nearby structures. It has not spread to the nearby lymph nodes.
Stage IIIA: The cancer has grown through the inner lining or into the muscle layers of the intestine. It has spread to 1 to 3 lymph nodes or to a nodule of tumor cells in tissues around the colon or rectum that do not appear to be lymph nodes but has not spread to other parts of the body.
Stage IIIB: The cancer has grown through the bowel wall or to surrounding organs and into 1 to 3 lymph nodes or to a nodule of tumor in tissues around the colon or rectum that do not appear to be lymph nodes. It has not spread to other parts of the body.
Stage IIIC: The cancer of the colon, regardless of how deep it has grown, has spread to 4 or more lymph nodes but not to other distant parts of the body.
Stage IVA: The cancer has spread to a single distant part of the body, such as the liver or lungs.
Stage IVB: The cancer has spread to more than 1 part of the body.
**Stage IVC: **The cancer has spread to the peritoneum. It may also have spread to other sites or organs.
According to Mayo Clinic, the leading symptoms of colon cancer include:
According to LetsGetChecked, you should get tested for colorectal cancer if: