title: Huffy-bike hematuria.
mesh_terms: D000293:Adolescent; D001265:Athletic Injuries / Q000150:complications*; D001642:Bicycling; D006417:Hematuria / Q000209:etiology*; D006801:Humans; D008297:Male; D010502:Perineum / Q000293:injuries*; D013177:Sports