[Iatrogenic urethral strictures of the male urethra].

The iatrogenic aetiology of urethral stricture appears to be increasing in frequency. Transurethral catheterization and endourethral manipulation are the principal aetiologic factors. Prevention is based essentially upon a greater respect of the urethra when an endoscopic exploration is necessary and the use of suprapubic catheterization whenever bladder drainage is necessary.