Outcome of children with isolated microscopic hematuria without renal biopsy

Introduction: hematuria (presence of >5 rbcs/hpf) may be a transient outcome or indicator of significant renal disorder in children. children with neither symptoms of a disease nor a physical abnormality who have microscopic hematuria should be placed in the category of isolated microscopic hematuria (imh).objectives: the aim of this study was to evaluate the course of imh.patients and methods: this investigation is an observational study of 124 patients referred to pediatric nephrology clinic from 2002-2012 with imh.results: in this study, 124 patients, 40 (32.3%) female and 84 (67.8%) male were evaluated. the mean age was 5.6±2.4 years. the mean follow-up time was 14.3 ± 14.4 months. this mean for 45.2% of the patients, was less than 6 months and for 4% of the patients, it was more than 4 years. the reasons for discovering hematuria were; 66.1% after routine evaluation, 21.8% due to positive family history and 12.1% after urinary tract infection (uti). in this study, all the laboratory tests and kidney function were normal, except for the presence of microscopic hematuria.conclusion: it was concluded that imh without renal failure, hypertension (htn) and proteinuria is a benign condition with no need for kidney biopsy.