Abstract: In the present work we consider uroflowmetry as a promising method of functional diagnostics in pediatric urological practice. Uroflowmetry is a method based on the measurement of volume urinary flow rate (VUR). The following parameters are recorded graphically: duration of urination, average urine flow rate, urine flow rate in the first second, time of reaching maximum urine flow rate, maximum urine flow rate and bladder volume.