[Current strategies in patients with urinary diversion, I: the lower urinary tract].

Urethral catheterization, intermittent self-catheterization and suprapubic catheters are reliable methods to drain the urine in the lower urinary tract. Only a strict indication for indwelling catheters can minimize the complications and negative side effects. All physicians, especially pediatricians, surgeons, neurologists and internists should be familiar with the problems of catheter drainage by using a strictly aseptic technique.