[Pathophysiology of overactive bladder].

Overactive bladder (OAB) is a complex of lower urinary tract symptoms (LUTS) frequently encountered in the clinical practice. In most cases, OAB may be managed quite well by the primary care physician who has an understanding of the pathophysiology of OAB. This article reviews all pathophysiological theories describing the development of OAB. An understanding of the pathophysiology of OAB may facilitate effective treatment of this disorder.