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Anorectal Manometry

Specialists in Gastroenterology

Board Certified Gastroenterologists located in St. Louis, MO

If you have fecal incontinence or chronic constipation, an anorectal manometry procedure can help you both determine its underlying cause and help guide treatment . At Specialists in Gastroenterology in St. Louis, Missouri, the dedicated providers offer anorectal manometry to help find the problem and the solution. Book your appointment by calling the office or using online scheduling.

Anorectal Manometry Q & A

What is anorectal manometry?

Anorectal manometry is a test that checks your rectal function. This includes the pressure in your anal sphincter muscles, the sensation level in your rectum, and the neural triggers involved in bowel movements. 

Anorectal manometry is an outpatient procedure at Specialists in Gastroenterology.

When would I need anorectal manometry?

You may need this test if you have any of the following issues. 


Constipation means you have fewer than three bowel movements per week.

Fecal incontinence

Fecal incontinence means you can't always control your bowels, so you experience at least occasional stool leakage.

Anorectal manometry can be an important diagnostic test for pelvic floor disorders, as it reveals the exact reason your bowels don't work properly.

How does anorectal manometry work?

You lie on your left side, drawing your knees upward. Your provider inserts a slim catheter in your rectum. The catheter houses a small, deflated balloon. 

During the test, you contract your muscles, bear down, and relax as directed. The tiny balloon expands and deflates several times during the test. A machine measures rectal and anal activity. The exam usually takes less than 20 minutes. 

What should I do before my anorectal manometry procedure?

Specialists in Gastroenterology gives you detailed directions before your scheduled procedure. This generally includes fasting starting at midnight the night before your procedure. You also need to empty your bowels, which involves using an enema at least two hours before your scheduled procedure. 

Usually, you can continue your medications as usual, but take them more than two hours before the procedure, and only with minimal water. As always, make sure your provider knows which medications you’re taking.

What happens at the end of the anorectal manometry procedure?

At the end of your procedure, your provider examines the data and determines what it means for you. In many cases, anorectal manometry can uncover problems, so your provider can better plan your treatment. 

Depending on the results of your procedure, you might start a new treatment plan, such as new medication, diet management, or special exercises. 

The Specialists in Gastroenterology team has the skills and expertise needed to diagnose and treat all types of GI problems and diseases, so call the office or book your appointment online.