Does Pelvic Floor Biofeedback Really Work for Anismus?
Yes. Biofeedback is one of the most extensively studied treatments for anismus.
Research has shown that people who receive biofeedback therapy improve their ability to relax the pelvic floor muscles during a bowel movement, find it easier to go to the bathroom and have fewer constipation symptoms.
In one study, about 70% of people who received biofeedback reported clear relief from their constipation symptoms three months after treatment. This rate was lower among people who received other treatments.
Another study found that people treated with biofeedback had fewer incorrect muscle contractions during defecation and could empty their bowels more easily.
What is more, biofeedback is not aimed only at short-term relief. Studies with long-term follow-up suggest that the correct bowel habits learned in treatment can last.
The key point is this:
Biofeedback is not a device that makes your bowels work.
It is a learning method that shows you how you are using your own pelvic floor muscles. The goal is to notice the pelvic floor muscles you unknowingly tighten during a bowel movement and learn to relax them at the right moment.
Is Biofeedback Different From Constipation Medication?
Yes.
Constipation medications and stool softeners can make stool softer or help it move more easily through the bowel.
In anismus, however, the problem is often not so much hard stool as the muscles working incorrectly at the exit.
You can think of it like this:
The bowel moves the stool all the way to the exit, but the muscles that should open there do not relax enough. In some people, the harder you strain, the more these muscles tighten.
That is why people may describe complaints such as:
- “I feel the urge, but nothing comes out.”
- “It feels like it gets stuck somewhere at the exit.”
- “No matter how hard I push, I can’t empty completely.”
- “I get up from the toilet, but it still feels like something is left inside.”
These are common ways people describe the problem.
The goal of biofeedback therapy is precisely to change this contraction–relaxation pattern.
How Is Pelvic Floor Biofeedback Done for Anismus?
First, your bathroom habits and how your pelvic floor muscles work are assessed.
The device used during biofeedback makes it possible to track when the pelvic floor muscles contract and when they relax.
You can also see this on the screen.
For example, if you squeeze your muscles while bearing down when you should be relaxing, this is normally very hard to notice. Biofeedback makes this incorrect contraction visible.
The physiotherapist then teaches you correct breathing, how to use intra-abdominal pressure properly and how to relax the pelvic floor.
The goal is for you, over time, to perform the correct defecation movement without the device as well.
Is Biofeedback Alone Enough to Treat Anismus?
Not everyone receives the same treatment.
In addition to biofeedback, depending on your needs, methods such as:
- Pelvic floor relaxation work
- Diaphragmatic breathing
- Correct toilet posture
- Correct straining (bearing-down) technique
- Abdominal and pelvic floor coordination
- Manual therapy
- Home exercises
- Improving bathroom habits
may be used.
So anismus treatment should not be thought of simply as “getting hooked up to a machine and doing exercises.”
The main goal is to reteach the body the correct defecation movement.
Should You Do Kegels for Anismus?
Not always.
One of the most common mistakes in anismus is starting Kegel exercises right away simply because the problem involves the pelvic floor.
Kegel exercises, however, teach you to contract the pelvic floor muscles.
In anismus, the problem is usually not weak muscles but muscles that cannot relax when they need to during a bowel movement.
That is why some people first need to learn to relax the pelvic floor rather than doing more squeezing exercises.
Which exercises are appropriate should be decided after a pelvic floor assessment.
How Many Sessions Does Biofeedback for Anismus Take?
The length of treatment is not the same for everyone.
How long the symptoms have been present, how tense the pelvic floor is, how quickly you learn to relax correctly and whether other constipation problems are also present can all affect how long treatment takes.
Scientific studies have often used biofeedback programs of 8–12 sessions. However, this number does not apply to everyone.
Some people learn to use their muscles correctly in a shorter time, while others may need longer rehabilitation.
For this reason, the length of treatment should be set individually after the initial assessment.
Author: Tuğçe Atalay, Specialist Physiotherapist
Last updated:
The information on this page is for general information only and does not replace diagnosis or treatment. Please consult your doctor and physiotherapist about your symptoms.