Colon polyps are not cancerous, they are precancerous lesions. Colon polyps are benign lesions, which often occur in the mucosal layer or mucosal muscle layer, but rarely in the submucosal layer. Colon polyps are divided into tubular adenomatous polyps, villous adenomatous polyps, or inflammatory hyperplastic polyps, which are all benign lesions. If colonic polyps repeatedly do not heal, or if the polyps grow faster in a short period of time, they are likely to become cancerous and need high attention. It is better to give minimally invasive treatment under colonoscopy, that is, EMR or ESD resection treatment, to solve the transformation of polyps into cancer. Colon polyps are benign lesions that are prone to the possibility of cancer. Eventually cancer may occur, most of them may be in 3-5 years, some for more than 10 years, or they may be cancer-free for life. Colon polyps, if found, are best removed endoscopically at an early stage.