Anorectal ultrasonography may also be called transperineal ultrasound or pelvic floor ultrasound. A small ultrasound transducer is placed over the skin between the vagina and anus. The muscles of the anal canal can be comprehensively evaluated with the use of anorectal ultrasonography. This type of ultrasound evaluation is often used in the evaluation of women with fecal incontinence.
Sometimes the muscles of the anus (anal sphincters) become damaged due to child birth, trauma, and/or prior surgery. The nerves controlling these structures may also be damaged. A careful history, physical examination, and ultrasound often lead to a comprehensive understanding of the problem and development of an effective treatment program.