The investigation of hematuria in children should never be allowed to
pose a greater risk to the child's health than does the problem itself
. For this reason, angiography and cystoscopy are rarely employed in t
he evaluation. The evaluation of the child should proceed methodically
and rest firmly on a well-taken history and results of physical exami
nation. The microscopic examination of the urinary sediment is the cor
nerstone of the evaluation process and can itself suggest the origin o
f the hematuria. Red cell casts, if present, indicate glomerulonephrit
is and obviate further urologic evaluation. Genitourinary imaging shou
ld be tailored to each clinical situation.