Congenital urethral strictures.
D002675:Child, Preschool; D004823:Epididymitis / Q000209:etiology; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D014525:Urethral Stricture / Q000151:congenital* / Q000000981:diagnostic imaging; D014555:Urination Disorders / Q000209:etiology