Anorectal Manometry

Anorectal physiology testing involves a series of tests that assess the strength and sensation of your anal sphincter muscles and the rectum.

Anorectal Manometry

Why is anorectal manometry performed?

Anorectal physiology testing including manometry is used to identify pelvic floor abnormalities which can cause constipation and faecal incontinence. Severe forms of these conditions can be debilitating and lead to poor quality of life. If pelvic floor dysfunction is identified, pelvic floor physiotherapy or anorectal biofeedback therapy can help treat these symptoms.

Sometimes, anorectal physiology testing is also used to assess the function of the anal sphincter after a severe injury sustained during vaginal delivery.

How is anorectal manometry performed?

Whilst you are lying on your side, a small catheter is inserted into the anus and you will be asked to perform a few squeezes, coughs and pushes. The pressures will be measured on a computer. A small balloon at the end of the catheter will then be slowly inflated to test your rectal sensation which can be abnormal in certain disorders such as irritable bowel syndrome. Following this, another disposable catheter will be inserted via the anus, into the rectum and filled with a small amount of warm water. You will be asked to expel the balloon in a private bathroom. This will help determine if you have features of dyssynergia.

How should I prepare for anorectal manometry?

No form of bowel preparation or aperients, including enemas or suppositories are required prior to the procedure. You will also not need to fast prior to anorectal physiology testing.

As anorectal physiology testing does not require any sedation or anaesthetics, you will be able to drive both prior to and after your appointment.

The information provided here is for general educational purposes only. If you would like to know if oesophageal manometry is appropriate for your situation, please contact Sydney Gastroenterology & Liver Group.

For appointments and enquiries, please phone   02 9480 6210

8:30AM – 5:00PM Monday - Thursday
8:30AM – 4:00PM Fridays

Suite 213
San Clinic Tulloch
Sydney Adventist Hospital
185 Fox Valley Rd
Wahroonga NSW 2076



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