SUMMARY— Modifications to the intravenous urogram are described. It is suggested that the time has come to rationalise the standard procedure. If an evaluation of the lower urinary tract is required, the voiding films may be modified to provide an intravenous urodynamogram. If an evaluation of the upper urinary tract is directed at a specific question, then the number of spot‐films can often be reduced. Copyright © 1979, Wiley Blackwell. All rights reserved