Medically reviewed by Timothy J. Spurling, M.D.
Colon cancer is the third leading cause of cancer-related death in the United States. However, it is also one cancer that can be prevented with regular screening through colonoscopy. “Most cancer in the colon – the first four to six feet of the large intestine -- develops from non-cancerous polyps,” says McLeod Gastroenterologist Dr. Timothy J. Spurling. “It takes 10 to 15 years for a polyp to turn into cancer. So, if you have a colonoscopy or other screening test every five to 10 years, we should be able to catch any problem early.”