Colorectal Cancer Testing Needs to Increase among over 50
Bowel cancer is also called colorectal cancer and includes large bowel cancer (colon cancer) and cancer of the back passage (rectal cancer or cancer of the rectum). Find out about bowel cancer symptoms, risk factors, causes and preventing bowel cancer. There is information about tests to diagnose bowel cancer and treatments including surgery, chemotherapy, radiotherapy, biological therapy, research and clinical trials. The living with bowel cancer section has information about diet after surgery, managing a colostomy, and how cancer may affect your sex life.
Almost all colon cancers start in glands in the lining of the colon and rectum. When doctors talk about colorectal cancer, this is usually what they are talking about. There is no single cause of colon cancer. Nearly all colon cancers begin as noncancerous (benign) polyps, which slowly develop into cancer.
You have a high risk of colon cancer if you:
Are older than 60
Are African American of eastern European descent
Eat a a lot of red or processed meats
Have colorectal polyps
Have inflammatory bowel disease (Crohn’s disease or ulcerative colitis)
Have a family history of colon cancer
Certain inherited diseases also increase the risk of developing colon cancer. Two of the most common are:
Familial adenomatous polyposis (FAP)
Hereditary nonpolyposis colorectal cancer (HNPCC), also known as Lynch syndrome
What you eat may play a role in your risk of colon cancer. Colon cancer may be linked to a high-fat, low-fiber diet and to a high intake of red meat. Some studies, though, have found that the risk does not drop if you switch to a high-fiber diet, so this link is not yet clear. Smoking cigarettes and drinking alcohol are other risk factors for colorectal cancer.
Treatment Treatment depends on many things, including stage of the cancer. Treatments may include:
Surgery (most often a colectomy) to remove cancer cells
Chemotherapy to kill cancer cells
Radiation therapy to destroy cancerous tissue
Surgery Stage 0 colon cancer may be treated by removing the cancer cells. This is done using colonoscopy. For stages I, II, and III cancer, more extensive surgery is needed to remove the part of the colon that is cancerous. This surgery is called colon resection.
Chemotherapy Almost all patients with stage III colon cancer should receive chemotherapy after surgery for 6 – 8 months. This is called adjuvant chemotherapy. The drug 5-fluorouracil can increase the chance of a cure in certain patients
You may receive just one type, or a combination of these drugs. There is some debate as to whether patients with stage II colon cancer should receive chemotherapy after surgery. You should discuss this with your oncologist.
Radiation Radiation therapy is sometimes used in patients with colon cancer. It is usually used in combination with chemotherapy for patients with stage III rectal cancer.