[Kidney damage in sterile reflux].

On the basis of the data mentioned and taking into consideration the fact that the whole complex of problems is not yet clarified unequivocally we come to the following conclusions: 1. Up to now there are no proofs for the fact that the most frequent type of reflux, i.e. the simple reflux of the urine from the urinary bladder into the upper urinary passage causes a renal damage. 2. The complicated VUR may certainly cause a urinary stasis kidney. In simultaneous calyco-tubular reflux probably focal shrinkings of the parenchyma may develop.