Abstract

Objective: To detect a correlation between crystalluria and symptomatic hematuria, which may be indicative of urological or kidney disease. Methods: A total of 617 first morning urine from 306 patients, including 59 urolithiasic subjects and 247 patients with other urinary tract problems but without lithiasis, were collected and analyzed by a light microscope and urine dipsticks. Meanwhile, 202 urines from 100 healthy subjects were analyzed to compare results. Results: Results show that in patients with hematuria, 81.08% of urolithiasis, 32.39% of patients without urolithiasis and 21.88% of controls had a positive crystalluria. The crystalline species most encountered in urolithiasis was whewellite with 37.84% followed by uric acid dihydrate with 21.62%. Conclusions: In most cases, the formation and growth of a calculi are the result of urinary disorders, metabolic, infectious or anatomical, whose identification can provide prophylactic and preventive measures of recurrence kidney stones.

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