The 3^rd edition of Urodynamics takes into account the technological innovations and new techniques that have been introduced since the publication of the 2nd edition in 1997. A simple yet practical guide to the functional investigation of patients with incontinence and voiding disturbances, the text makes clear the fundamental and vital contribution of urodynamic investigation to the management of patients with lower urinary tract dysfunction. The new terminology from the International Continence Society has been introduced, references fully updated and standardization reports in the Appendix completely revised.