Colorectal cancer is a cancer that starts in the colon or the rectum. Learn about the types of colorectal cancer, how they start, and where they grow.

Dec 19, 2024 · Colon cancer typically affects older adults, though it can happen at any age. It usually begins as small clumps of cells called polyps that form inside the colon.

Oct 28, 2025 · Colon cancer, also known as colorectal cancer, is cancer in polyps that are in the inner lining of your colon or rectum.

Feb 26, 2025 · Colorectal cancer almost always develops from precancerous polyps (abnormal growths) in the colon or rectum. Screening tests can find precancerous polyps, so that they …

Colorectal cancer often begins as a growth called a polyp inside the colon or rectum. Finding and removing polyps can prevent colorectal cancer. Start here to find information on colon and …

Mar 5, 2024 · Colorectal cancer starts in the colon or rectum. It may not cause symptoms at first. Screening tests can help find it early, when treatment is most effective.

Learn about colon cancer warning signs to know that you should watch and shouldn't ignore. Colon cancer usually does not cause signs or symptoms in the early stages.

Colorectal cancer is a cancer that begins in the colon or rectum. Colorectal cancers are the third most common type of cancer in the United States. More than 145,000 people in this country …

Colorectal cancer, also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine).

Jul 11, 2023 · Colorectal cancer is a type of cancer that affects the colon (large intestine) or rectum. It is one of the most common types of cancer worldwide. It can cause severe harm …