Post-operative retention of urine.

Introduction Post-operative retention of urine is a common surgical complication, and it is essential to have a clear understanding of the factors involved in its production and the principles of its management, if further complications and mortality are to be prevented. The object of this article is not only to describe the methods of prevention and relief of urinary retention but to point out when they are indicated. The post-operative treatment of cases who have undergone surgery to the bladder, prostate and urethra will not be considered.