This second edition has been completely re-written and its length increased to take account of the growing awareness and of the new, more sophisticated techniques now used in the assessment of patients with debilitating disorders of the pelvic floor, anorectum and colon. Thus the importance of neurological, physiological, urological, gynaecological, and pharacological, anatomical and surgical aspects in the understanding and treatment of pelvic floor disorders are reflected in the depth of coverage given to these topics.