The introduction of oil under pressure into the urethra as a means of lubrication and dilation of a strictured area has been mentioned by a number of writers. The method as outlined by Thompson,1 Cabot,2 Hyman3 and Crance4 has been used by many urologists as an aid to the introduction of the filiform in the more difficult types of urethral strictures. In these cases the forcing of oil beyond the area of stricture often results in sufficient dilatation and lubrication to enable one to pass a filiform where this has previously been impossible. I have resorted to this method numerous times with a fair measure of success, and in certain cases in which the patient has been able to void I have been content to pass oil beyond the area of stricture on several successive days before making a second attempt at instrumentation.
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