title: [Various phases of defecation disorders in anal diseases].
mesh_terms: D001004:Anus Diseases / Q000503:physiopathology*; D003250:Constriction; D003672:Defecation; D005401:Fissure in Ano / Q000503:physiopathology; D006484:Hemorrhoids / Q000503:physiopathology; D006801:Humans