ABSTRACT
Introduction Urethrocystoscopy is not useful in the initial evaluation of neurogenic bladders, but becomes very instrumental in the assessment of lower urinary tract complications. Urethrocystoscopy cannot, by any means, give information on lower urinary tract function. For example, external sphincter contractions and relaxation observed during voluntary movement do not reflect the real functional value of this complex unit. Another classic example is the examination of endoscopic aspects of the bladder neck, which cannot replace functional studies for the evaluation of its opening and closing.
