Most colorectal cancer starts from a polyp, a small clump of cells that forms on the colon’s lining. Polyps are often harmless, but over time, some grow and develop into cancer. Precancerous ...

“Not all colon polyps are cancerous but all colon cancer starts as a polyp which is why everyone needs to know about them and be screened regularly for them,” says Fola May, MD, a ...