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Korean J Gastroenterol  <  Volume 73(2); 2019 <  Articles

Korean J Gastroenterol 2019; 73(2): 92-98  https://doi.org/10.4166/kjg.2019.73.2.92
Chronic Functional Constipation
Jeong Eun Shin, Kyung Sik Park1 and Kwangwoo Nam
Department of Internal Medicine, Dankook University College of Medicine, Cheonan; Department of Internal Medicine, Keimyung University School of Medicine1, Daegu, Korea
Correspondence to: Kyung Sik Park, Department of Internal Medicine, Keimyung University School of Medicine, 56 Dalseong-ro, Jung-gu, Daegu 41931, Korea. Tel: +82-53-250-7088, Fax: +82-53-250-7442, E-mail: seenae99@dsmc.or.kr, ORCID: https://orcid.org/0000-0003-1874-9936
Received: January 18, 2019; Revised: January 29, 2019; Accepted: February 2, 2019; Published online: February 25, 2019.
© The Korean Journal of Gastroenterology. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Constipation is a common functional problem of the digestive system and may occur secondary to diet, drugs, endocrine diseases, metabolic diseases, neurological diseases, psychiatric disorders, or gastrointestinal obstruction. When there is no secondary cause, constipation is diagnosed as functional constipation. The first steps that should be taken to relieve symptoms are diet and lifestyle modifications, and if unsuccessful, laxative therapy should be initiated. If a patient does not respond to laxative therapy, diagnostic anorectal physiological tests are performed, though they are not routinely recommended. However, these tests may be considered earlier in patients strongly suspected to have a defecatory disorder. The revised guideline on the diagnosis and treatment of chronic constipation will undoubtedly aid the individualized management of chronic constipation in clinical practice.
Keywords: Constipation; Laxatives; Digital rectal examination; Anorectal function test; Biofeedback


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