[Severe pain in the behind but nothing to be seen. A fantasy or abscess?].
D000038:Abscess / Q000175:diagnosis / Q000601:surgery; D001004:Anus Diseases / Q000175:diagnosis / Q000601:surgery; D004322:Drainage; D006801:Humans; D012002:Rectal Diseases / Q000175:diagnosis / Q000601:surgery; D012008:Recurrence