Anorectal Physiology Testing

During the past several decades, anal physiology testing has afforded us a more complete understanding of the complex interactions between pelvic anatomy and physiology. Techniques have been improved and validated in both normal volunteers and in states of disease. This chapter will give a detailed overview of the differing methods of anal physiology testing and provide clinical correlations as to when these tests may be useful, or conversely, in which situations clinical judgment should supersede testing.