Pelvic ? oor ultrasound is often described as a niche investigation within obstetrics and gynecology and even within gynecological ultrasound. After reading this book, I am convinced that it should be a mainstream investi- tion taught to all fellows and subspecialty trainees. Nothing should be of more importance to obstetricians and gynecologists than the protection of the pelvic ? oor of their patients and effective treatment when disorders arise. These disorders cause more prolonged and disruptive misery to patients than many of the conditions that clog up the waiting list in obst- rical...