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 ...

Polyps are tissue growths that most often look like small, flat bumps or tiny mushroom-like stalks. They are usually small and less than half an inch wide. Most are benign but can become cancerous.