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Conditions we treat · Bowel

Constipation

Constipation means infrequent, hard, or difficult-to-pass bowel movements, often with straining and a sense of incomplete emptying. In many people the problem is not slow transit but the exit: pelvic floor muscles that tighten instead of relaxing when you push. This “outlet” constipation responds poorly to laxatives and very well to pelvic floor retraining, which in randomized trials outperformed laxatives, muscle relaxants and placebo.

Also called: Chronic constipation · Pelvic floor constipation · Outlet constipation · Dyssynergia-type constipation

What is constipation?

Most advice about constipation is about fibre, fluids and movement, and those matter. But if you are straining to pass soft stool, feel blocked, or find that laxatives give you urgency without relief, the bottleneck is likely the pelvic floor. When the muscles around the rectum contract rather than relax during a bowel movement, stool cannot pass however hard you push.

Constipation also feeds other pelvic problems. A full rectum presses on the bladder, contributing to urgency and leaks; chronic straining stretches the pelvic floor and contributes to prolapse and haemorrhoids. Treating the exit problem often improves the neighbours.

Common signs and symptoms

  • Fewer than three bowel movements a week, or hard, lumpy stools
  • Straining or spending a long time on the toilet
  • Feeling blocked, or that you have not emptied completely
  • Needing to press around the anus or vagina, or use a finger, to help
  • Bloating, and bladder urgency that improves after a bowel movement
  • Haemorrhoids or fissures from repeated straining

What causes it?

  • A pelvic floor that tightens instead of relaxing when you push (dyssynergia)
  • Postponing the urge, rushing, or hovering over toilets
  • Guarding after a painful fissure, haemorrhoid or childbirth tear
  • Low fibre and fluid intake, low activity, or a stressful, irregular routine
  • Pregnancy, medications (including iron and some pain relievers) and thyroid or bowel conditions
  • Prolapse of the back vaginal wall (rectocele), which traps stool

How pelvic floor physiotherapy helps

Pelvic floor physiotherapy for constipation retrains the mechanics of emptying. Once your physiotherapist can show you what your muscles do when you push, most people learn to relax and open them within a few sessions, and the daily struggle eases.

A treatment plan typically includes:

  • An assessment of how your pelvic floor behaves during a simulated bowel movement
  • Biofeedback training to replace clenching with relaxation and an effective push
  • Toileting posture and breathing: feet raised, leaning forward, belly relaxed, no breath-holding
  • Manual therapy and down-training for a tense, overworked pelvic floor
  • Abdominal massage and movement routines that help transit
  • Fibre, fluid, timing and routine changes tailored to your diary, coordinated with your doctor

What the research says

The studies below are peer-reviewed and linked to their permanent records so you can read them yourself.

In this randomized trial of patients whose constipation was caused by pelvic floor dyssynergia, biofeedback produced major improvement in about 80% at six months, compared with 22% for laxative treatment, and the benefit lasted at two years.

Chiarioni G, Whitehead WE, Pezza V, Morelli A, Bassotti G. Biofeedback is superior to laxatives for normal transit constipation due to pelvic floor dyssynergia. Gastroenterology, 2006. View study

Biofeedback was superior to sham feedback and to standard therapy (diet, exercise, laxatives) at correcting dyssynergia and improving symptoms in this randomized controlled trial.

Rao SSC, Seaton K, Miller M, et al.. Randomized controlled trial of biofeedback, sham feedback, and standard therapy for dyssynergic defecation. Clinical Gastroenterology and Hepatology, 2007. View study

Biofeedback was more effective than the muscle relaxant diazepam and than placebo for pelvic floor dyssynergia-type constipation in this randomized trial.

Heymen S, Scarlett Y, Jones K, Ringel Y, Drossman D, Whitehead WE. Randomized, controlled trial shows biofeedback to be superior to alternative treatments for patients with pelvic floor dyssynergia-type constipation. Diseases of the Colon & Rectum, 2007. View study

Treatment at Corelife Wellness in Oakville

Corelife Wellness is a dedicated pelvic health clinic at 3075 Hospital Gate, Unit 312, Oakville, next to Oakville Trafalgar Memorial Hospital. Care starts with a free 15-minute consultation by phone, video or in person, followed by a full assessment with our Registered Physiotherapist. Every pelvis is unique, so your plan is built from that exam rather than a template. No referral is needed, and physiotherapy is often eligible under extended health benefits.

How assessment and treatment work, and how to book, are on our main page: Pelvic floor physiotherapy in Oakville.

Helpful reading from our team

When to see a doctor first

Pelvic floor physiotherapy is safe and you do not need a referral, but some symptoms need a medical assessment before or alongside treatment:

  • Blood in the stool, black stools or anaemia
  • A sudden change in bowel habit after age 50, or that lasts more than a few weeks
  • Unexplained weight loss, vomiting or severe abdominal pain
  • Constipation alternating with diarrhoea plus fever or night-time symptoms
  • A family history of bowel cancer or inflammatory bowel disease

Written by the Corelife Wellness pelvic health team, Oakville, Ontario. Last reviewed September 29, 2026. Sources are listed under “What the research says”.

This page is general information about constipation, not a diagnosis. An assessment tells you what applies to you. Contact the clinic with any questions.

Constipation: your questions

How do I know if my constipation is a pelvic floor problem?

Typical clues are straining even when stool is soft, a feeling of blockage or incomplete emptying, needing to press or use a finger to help, and laxatives that cause urgency without real relief. An assessment of how your muscles behave when you push gives a clear answer.

Will I have to stop taking laxatives?

Not straight away. We coordinate with your doctor. As the mechanics of emptying improve, many people reduce their reliance on laxatives, but that is decided by how you are doing, not by a rule.

How many sessions does it usually take?

Biofeedback retraining trials typically used around four to six sessions spread over a few weeks, with home practice in between. Your plan depends on your assessment and progress.

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