[Hydraulic distension of the bladder in urology]

The authors discuss the indications and technique as well as the results in four patients successfully treated by means of hydraulic distension for a non-tumoural vesical pathology. H.V.D. is still a new method in spite of the long time which has elapsed since the first descriptions although it is simple with few complications if one follows a correct technique. Its main scope is in the treatment of interstitial cystites, unstable bladders and vesical hematurias following radiotherapy, cancer or cytostatics, apart from its use in vesical tumours in which further experience is required in order to establish correctly its real possibilities and limitations although the first indications are also highly positive.