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 enema examination is carried out in order to check for any malfunctioning in the colon region. X-rays are unable to penetrate the barium liquid metal used, which lines the colon, resulting in ...