A polyp is a growth typically found on mucous membranes lining the body's natural cavities, such as the colon, rectum, uterus, vagina, nose, sinus, bladder, stomach and so on. A polyp on the stomach lining is generally a benign tumor localized on the mucous membrane of the stomach. It is shaped like a small protrusion and, in most cases, causes no symptoms. However, abdominal pain and digestive symptoms can manifest if the polyp grows or multiplies in this area. There is also the risk of complications if certain types of polyps progress into a cancer. Diagnosis by esophagogastroduodenoscopy allows us to study the inside of the stomach, and is therefore necessary in order to identify the nature of the polyp and to remove it for further investigation if there is any doubt.