Some , such as the American Academy of Pediatrics recommends renal ultrasound and voiding cystourethrogram ( watching a person 's urethra and urinary bladder with real time x-rays while they urinate ) in all children less than two year old who have had a urinary tract infection .
Some medical groups , such as the American Academy of Pediatrics , recommend renal ultrasound and voiding cystourethrogram ( watching a person 's urethra and urinary bladder with real time X-rays while they urinate ) in all children who are younger than 2 years old and have had a urinary tract infection .