Cancer is the growth of abnormal cells in the body. These extra cells grow together and form masses, lumps, or tumors. In colorectal cancer, these growths usually start as harmless (benign) polyps in the large intestine (colon or rectum).
Is this topic for you? This topic provides information about the initial testing, diagnosis, and treatment of colorectal cancer. If you are looking for information on colorectal cancer that has come back or has spread to other parts of the body, see the t
Call your doctor if you have any symptoms of colorectal cancer, such as a change in bowel habits, bleeding from your rectum, including bright red or dark blood in your stools, or constant or frequent diarrhea or constipation.
Your doctor may recommend earlier or more frequent testing if you: Already have been diagnosed with colorectal cancer. Have a first-degree relative (parent,brother,sister,or child) with an adenomatous polyp or colorectal cancer. Are an African American. Have had adenomatous polyps removed from your colon. This type of polyp is more likely to turn into cancer,but the risk is still very ...
Although these blood tests are highly reliable, no test is 100% accurate. The test cannot tell you when or whether you will develop colon cancer. Testing negative for an inherited colon cancer syndrome (FAP or HNPCC) does not mean you will never get colon cancer. It means your risk of colon cancer is about the same as that of the average person.It's very helpful if a close relative-preferably a ..
Colonoscopy is a test that allows your doctor to look at the interior lining of your large intestine (rectum and colon). A colonoscopy is done using a thin, flexible viewing instrument called a colonoscope.