27 units of ureterorenal reflux in adults were operated and analyzed between 1976 and 1980. It was shown that adequate preservation of function in refluxive kidneys with scarring grades I and II can be achieved by means of ureteroneocystostomy after the method of Cohen. The early removal of unilateral refluxive kidneys with high grade scarring is imperative. In cases of bilateral occurrence the indication for operative treatment should depend on the function demonstrated by isotopic investigations.