Colon polyps are growths on the inside lining of your colon. Polyps are tumors that grow out of the mucous lining inside your hollow organs. Colon polyps are common, and many are harmless. But some types can grow into cancer if they aren’t removed. This is why healthcare providers look for polyps in your colon during a colonoscopy. While polyps aren’t cancer, almost all colorectal cancer starts from a polyp. Most colon polyps, and many colorectal cancers, won’t cause any symptoms. This is why sc