OBJECTIVE: To evaluate the extent of diagnostic evaluation that is necessary in young men with asymptomatic microscopic haematuria. PATIENTS AND METHODS: A group of 157 men (mean age 24.8 years [range 18-53]) who presented with asymptomatic haematuria were investigated with repeated urine analysis. Addis count, urinary cultures, blood tests, ultrasonography, pyelography, cystourethroscopy and finally renal biopsy. RESULTS: The results showed pathological findings in 31.2% of patients. Of the 157 individuals, 33.1% did not complete the study. In 14.6% urological disease was found, including two patients with urothelial cancer. Renal biopsy detected glomerulopathy in 16.5% of all patients. IgA nephritis being the most common diagnosis (42% of all biopsies). CONCLUSION: Even in young patients, microscopic haematuria should be investigated and followed thoroughly. Renal biopsy seems to be optional: once a diagnosis is established repeated and unnecessary examinations can be avoided.
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Sparwasser et al. (1994) studied this question.
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