Colonoscopy is available at Northwest Family Physicians. It is an effective tool to prevent and detect early colon cancer. Colon cancer is the second most common cause of cancer death in the United States. Many lives can be saved if precancerous growths (polyps) are discovered before they become cancerous, or if colon cancer is discovered before it has spread. If you are 50 years of age, or older, talk with your provider about scheduling this important screening procedure.