Colon cancer develops in the large intestine (colon). The rectum is the last several inches of the colon. Colorectal cancers include cancer of the colon and the rectum.
Most cases of colon cancer begin as small clumps of cells called polyps. Although the majority of polyps are noncancerous (benign), some can become cancerous (malignant) over time. In later stages of the disease, cancerous tumors may penetrate the colon wall and spread (metastasize) to nearby lymph nodes or other organs. Colon cancer rarely causes symptoms in its early stages.
Mayo Clinic in Rochester, Minn., is ranked among the Best Hospitals for cancer by U.S. News & World Report. Mayo Clinic in Jacksonville, Fla., and Mayo Clinic in Scottsdale, Ariz., are ranked high performing for cancer by U.S. News & World Report.
At Mayo Clinic, we assemble a team of specialists who take the time to listen and thoroughly understand your health issues and concerns. We tailor the care you receive to your personal health care needs. You can trust our specialists to collaborate and offer you the best possible outcomes, safety and service.
Mayo Clinic is a not-for-profit medical institution that reinvests all earnings into improving medical practice, research and education. We're constantly involved in innovation and medical research, finding solutions to improve your care and quality of life. Your doctor or someone on your medical team is likely involved in research related to your condition.
Our patients tell us that the quality of their interactions, our attention to detail and the efficiency of their visits mean health care — and trusted answers — like they've never experienced.
Sue Willingham remembers the May 2010 day well. She was getting ready to take her two children to school. But before leaving the house, she did what any mom might – use the restroom. But then she noticed she'd lightly ...
Mayo Clinic's Cancer Education Center offers education and support for cancer patients and their families and friends.