What stage of colon cancer is polyp?

No stage.: Polyps are not cancer yet. There are many forms of polyps. Some, like tubular adenoma and villous adenoma, need a full colonoscopy, and surgery if the polyp is too large. Hyperplastic polyps need no treatment. Colon cancers can arise from adenomatous polyps.

Very early stage: Neglected polys will develop cancer, colon cancer also starts as colon cancer with out being polyp.

Pre-cancerous: Polyp only means a grape like structure protruding into the lumen of an organ. Some cancers appear polypoid. Histologically confirmed benign polyp, by a pathologist, is a pre-cancerous lesion.