title: How to perform and interpret balloon expulsion test.
abstract: The balloon expulsion test is a simple and useful method for investigating a defecatory disorder assessing the subject's ability to evacuate a simulated stool. However, there is no standard methodology and varying interpretations have been reported. This review discusses the techniques, interpretation and clinical utility of the balloon expulsion test.
authors.affiliation: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors.forename: Bong Eun
authors.initials: BE
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors.forename: Gwang Ha
authors.initials: GH
authors.lastname: Kim
keywords: Constipation, Defecation, Functional gastrointestinal disorders