The penis.
D002944:Circumcision, Male / Q000009:adverse effects; D006801:Humans; D008297:Male; D010409:Penile Diseases; D010413:Penis / Q000002:abnormalities* / Q000196:embryology; D012611:Scrotum / Q000002:abnormalities; D014102:Torsion Abnormality; D014525:Urethral Stricture / Q000209:etiology