Anorectal disorders.
D001004:Anus Diseases / Q000601:surgery*; D001005:Anus Neoplasms / Q000601:surgery; D003424:Crohn Disease / Q000150:complications; D005260:Female; D005401:Fissure in Ano / Q000601:surgery; D006484:Hemorrhoids / Q000601:surgery; D006716:Homosexuality; D006801:Humans; D008297:Male; D010864:Pilonidal Sinus / Q000601:surgery; D012002:Rectal Diseases / Q000601:surgery*; D012003:Rectal Fistula / Q000601:surgery; D012004:Rectal Neoplasms / Q000601:surgery; D012005:Rectal Prolapse / Q000601:surgery; D012725:Sexual Behavior; D012812:Sigmoidoscopy