A barium swallow is a type of test used to look inside the esophagus, or food pipe. A doctor might recommend this test if they need to look at the outline of any part of a person’s digestive system.

A barium swallow is a type of X-ray test that helps your doctor see the back of your mouth and throat (pharynx), and the tube that extends from the back of the tongue down to the stomach (esophagus).

A barium x-ray is a test to look at the outline of any part of your digestive system. Barium is a white liquid that shows up clearly on an x-ray. Once it is inside the body, it coats the inside of the ...