Anorectal Manometry

What is Anorectal Manometry?

Anorectal manometry is a diagnostic test used to evaluate the function of the rectum and anal sphincter muscles. It measures the pressure and coordination of muscle contractions in the rectum and anus.

Why would I need this?

Anorectal manometry helps diagnose conditions such as fecal incontinence, chronic constipation, and rectal prolapse. It provides valuable information about the muscular activity of the anorectal region.

Anorectal manometry can also be used to evaluate people with:

  • Malformations or injuries of the anus or rectum affecting nearby nerves or muscles.
  • Hirschsprung’s disease, a condition that is present at birth, and affects the muscles of the bowel.
  • Pelvic floor dysfunction causing miscoordination of the muscles of the rectum.

What happens during the Anorectal Manometry?

During anorectal manometry, a thin, flexible tube with pressure sensors is inserted into the rectum. You may be asked to squeeze or bear down while the sensors measure muscle contractions and pressure. The test usually takes about 30 minutes.

What should I prepare for the procedure?

  • You will need to take TWO fleets enemas (which can be purchased over the counter) rectally two hours before your procedure.
  • Do not eat or drink anything starting two hours before your procedure.
  • You may take your regular medications up to two hours before the procedure with small sips of water.

What happens after the procedure?

After anorectal manometry, you can resume your normal activities. Dr. Patel will analyze the test results and discuss the findings with you, along with any necessary treatment options.


Kumkum Patel MD, MPH

Board-certified Gastroenterologist.
IBS and Motility Specialist

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