The ureters are the tubes that carry urine from the kidneys to the bladder. The connection where 1 or both of your child’s ureters attach to the bladder isn’t fully developed. This can cause urine to flow from the bladder back up into the kidney. This is called vesicoureteral reflux (VUR). VUR doesn’t cause pain. But it can increase your child’s risk for urinary tract infections (UTIs). Over time, it can also damage your child’s kidneys. With ureteral reimplantation surgery, 1 or both ureters are moved. This makes their connection to the bladder stronger. It also helps the urine drain well and not flow backwards.