Overactive Bladder: Non-neurogenic

Overactive bladder (OAB) is a clinical diagnosis defined by the International Continence Society as the presence of urinary urgency, usually accompanied by frequency and nocturia, with or without urgency urinary incontinence, in the absence of a urinary tract infection (UTI) or other obvious pathology. Urodynamic studies (UDS) are not required for patients with straightforward OAB; however, they can be useful in patients with refractory OAB symptoms, symptoms suggestive of outlet obstruction or voiding dysfunction, elevated post-void residual, and history of previous continence surgery, as well as in patients who have difficulty describing the type of incontinence they have. The objective of this chapter is to provide an overview of overactive bladder and discuss the UDS findings in patients with OAB symptoms.