Asymptomatic macroscopic hematuriadetected by chance in apatient at ai entry exanination preceding employment has led to the flnding of aserious kidney injury following atraima At flrst treatment in hospitd wae necessay, áterwa-ds in the ca~e of agenerd practitioner. In špite of the patient being undisciplined the finding in the areaof the injured kidney continues to regress.

        Key words: kidney - injury - hematuria