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Manometry mə-ˈnäm-ət-ər

By Walter W. Chan, MD, MPH, Assistant Professor of Medicine; Director, Center for Gastrointestinal Motility, Division of Gastroenterology, Hepatology, and Endoscopy, Harvard Medical School; Brigham and Women's Hospital

Manometry is a test in which a tube with pressure gauges along its surface is placed in the digestive tract. The device (manometer) may be placed in the esophagus, stomach, first part of the small intestine, or the rectum. Using the manometer, a doctor can determine whether contractions of the digestive tract are normal or whether pressure in the anal sphincter is normal. Aside from minor discomfort, complications are very rare.