Colonic polyps are not cancerous.

Polyps can occur anywhere in the intestine, such as in the descending colon. However, descending colon polyps are not necessarily cancerous, and most polyps present benign lesions after biopsy. It is generally necessary to biopsy under colonoscopy to assess whether the tumor is cancerous. In addition, patients need to pay attention to high-grade intraepithelial neoplasia, which has a high probability of cancer.