Urolithiasis in children.

: Between 1971 and 1980, 55 children with urolithiasis were assessed and treated. Pediatric urolithiasis accounted for 1:4090 hospital admissions. Forty percent of patients had no identifiable predisposition to urolithiasis. Eight patients presented with hematuria in the absence of renal colic suggesting that pediatric urolithiasis, although uncommon, is an important cause of painless hematuria.