Colorectal Cancer Quiz

The colon and the rectum are part of the large intestine, which is part of the digestive system. Because colon cancer and rectal cancers have many features in common, they are sometimes referred to together as colorectal cancer. Colorectal cancer includes cancers of both the large intestine (colon), the lower part of your digestive system, and the rectum, the last 8 to 10 inches of the colon.