Why do they need voiding cystograms in children?

See below: This is done to see if there is any problems with the ureters, which lead from the kidneys to the bladder. Some children with recurrent uti's may have reflux of the urine from the bladder toward the kidneys, which is abnormal. However, the recommendation for obtaining this study has changed. It is not recommended as frequently any more.

Verification: Urine is supposed to travel from the kidneys down through ureters into the bladder and then go out through the urethra.As long as it only goes in the right direction, down and out, there is no problem. In some kids, when the bladder squeezes,some urine heads back to the kidneys, making infections & damage possible. The VCU detects this.