Polyps are bits of extra cells that can grow in many of your tissues. Gastric polyps, or stomach polyps, are growths that develop in the lining of your stomach. In many cases, these polyps cause no ...

A hyperplastic polyp is a growth that can develop in the colon or stomach. They do not always cause symptoms, but some people may experience rectal bleeding. Rarely, the polyps may be precancerous.

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.