Most colorectal polyps are benign. However, large polyps can cause constipation and other symptoms and are more likely to be cancerous. Colorectal polyps are small growths that form on the lining of ...

Sessile polyps develop on the mucosa, the tissue that lines the colon and other organs. They are flat and round and mostly harmless, but some can become cancerous. Polyps can be peduncled or sessile.