A 53-year-old otherwise healthy woman presents with a 2-year history of intermittent fecal incontinence. Because of embarrassment, she has curtailed her social and professional activities. Physical activity often precipitates an episode, and she wears absorbent pads. She has occasional urinary incontinence when she coughs or sneezes. There is no history of gastrointestinal or rectal surgery and no neurologic symptoms. Physical examination reveals no perianal deformity or rectal prolapse. The tone of the anal canal is adequate, whereas contractions of the anal sphincter muscle and the puborectalis muscle are weak. On the patient’s bearing down, there is no rectal prolapse, and the perineal descent is approximately 2 cm. How should she be evaluated and treated? T h e C l i nic a l Probl e m Fecal incontinence is a devastating nonfatal illness, resulting in considerable embarrassment and anxiety in those who have it. It affects 2 to 17% of people living in the community and almost half of all nursing home residents. 1 Many affected persons do not voluntarily report fecal incontinence to their physicians and must be asked about it directly. 2 The prevalence of fecal incontinence is increased among women, the elderly, persons with poor health status or physical limitations, and those residing in nursing homes. 2 Other risk factors associated with fecal incontinence in adults include rectal radiation therapy (e.g., for prostate cancer), pregnancy, injury to the sphincter or nerve damage associated with vaginal delivery, anorectal surgical procedures (e.g., sphincterotomy for anal fissures), diarrhea alone or in association with the irritable bowel syndrome, and fecal impaction. Neurologic conditions (e.g., stroke, multiple sclerosis, spinal cord injury, and Parkinson’s disease) and diabetes are also risk factors. Continence relies on the appropriate functioning of the puborectalis muscle and the internal and external anal sphincter muscles, which encircle the anal canal (Fig. 1). Factors such as stool consistency, rectal and colonic storage capacity, perception of rectal sensation, and cognitive and behavioral functioning also play important roles. An abnormality in any of these factors may result in fecal incontinence.
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