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File:023_European_bee-eater_defecating_in_Pfyn-Finges_Photo_by_Giles_Laurent.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ204015· pop 63· linked from 759 articles

defecation

Also known as GO:0030421, BM, crapping, fecal elimination, bowel movement, pooping, number two, shitting

alt=European bee-eater defecating|thumb|European bee-eater defecating right|frame|Human anatomy of the anorecturm (anus and [[rectum)]]

AI overview

Defecation is the process by which the body eliminates solid waste (feces) through the anus and rectum. It is a necessary biological function that removes indigestible materials and other waste products from the digestive system.

AI-generated from the Wikipedia summary — may contain errors.

Research

18,482 papers

Defecation-related asthma.Internal medicine (Tokyo, Japan) · 2013Ano S, Morishima Y, Ishii Y et al.DOI: 10.2169/internalmedicine.52.8943
Biofeedback therapy for dyssynergic defecation.ReviewWorld journal of gastroenterology · 2006Chiarioni G, Heymen S, Whitehead WEDOI: 10.3748/wjg.v12.i44.7069
Defecation enhances cerebral perfusion and delays fatigue in elite triathletes.Journal of the International Society of Sports Nutrition · 2023Wei CC, Condello G, Yang AL et al.DOI: 10.1080/15502783.2023.2206380
Hydrodynamics of defecation.Soft matter · 2017Yang PJ, LaMarca M, Kaminski C et al.DOI: 10.1039/c6sm02795d
Understanding the physiology of human defaecation and disorders of continence and evacuation.ReviewNature reviews. Gastroenterology & hepatology · 2021Heitmann PT, Vollebregt PF, Knowles CH et al.DOI: 10.1038/s41575-021-00487-5
Defecation initiates walking in the cricket Gryllus bimaculatus.Journal of insect physiology · 2019Naniwa K, Sugimoto Y, Osuka K et al.DOI: 10.1016/j.jinsphys.2018.11.004
Quantification of defecation frequency in cats with and without chronic kidney disease.Journal of feline medicine and surgery · 2025George ZM, Quimby JM, Jones S et al.DOI: 10.1177/1098612X251348011
[Physiology of fecal continence and defecation].ReviewArchives internationales de physiologie, de biochimie et de biophysique · 1991Bouvier MDOI: 10.3109/13813459109145917

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Wikidata facts

Image: Bernard Picart - The Perfumer.jpg

Show 2 more facts

Commons category: Defecation
exact match: purl.obolibrary.org/obo/GO_0030421

Sources (2)

via Wikidata · CC0

~17 min read

Article

18 sections

Contents

Description
Physiology
Voluntary and involuntary control
Posture
Disease
Constipation
Inflammatory bowel diseases
Irritable bowel syndrome
Bowel obstruction
Other
Society and culture
Open defecation
Anal cleansing after defecation
Mythology and tradition
Psychology
See also
References
Further reading

alt=European bee-eater defecating|thumb|European bee-eater defecating right|frame|Human anatomy of the anorecturm (anus and [[rectum)]]

Defecation (or defaecation) follows digestion and is the necessary biological process by which organisms eliminate a solid, semisolid, or liquid waste material known as feces (or faeces) from the digestive tract via the anus or cloaca. The act has a variety of names, ranging from the technical (e.g. bowel movement), to the common (like pooping or crapping), to the obscene (shitting), to the euphemistic ("doing number two", "dropping a deuce" or "taking a dump"), to the juvenile ("going poo-poo" or "making doo-doo"). The topic, usually avoided in polite company, forms the basis of scatological humor.