Circumcision.
D000293:Adolescent; D000818:Animals; D002648:Child; D002944:Circumcision, Male / Q000009:adverse effects; D000882:Haplorhini; D006736:Horses; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D051379:Mice; D010688:Phimosis / Q000628:therapy; D012902:Smegma