Vesicoureteral Reflux (VUR)
Vesicoureteral Reflux (VUR)
Vesicoureteral reflux (VUR) is an abnormal passage of urine from the bladder back up into the kidney. In children, this condition is usually caused by a congenital (present at birth) abnormality and is considered to be primary VUR. Secondary VUR is most commonly caused by a urinary tract infection.