10.2 Pelvic Floor Rehabilitation and Incontinence
Key Takeaways
The levator ani and coccygeus form the pelvic diaphragm. Puborectalis contributes to anorectal control, and coordinated relaxation supports emptying.
Classify leakage by triggers and urgency. Assess emptying and toileting access separately, and interpret residual urine in context.
POP-Q uses the hymen as zero. A leading edge 0.5 cm above it is stage II. Symptoms and goals guide conservative care.
Confirm and document voluntary contraction and relaxation with a suitable, consented assessment. Tailor exercise to technique, endurance, symptoms and goals.
Supervised PFMT is first-line care for stress or mixed leakage, and bladder training is first-line care for urgency or mixed leakage. PTNS is a separate specialist option for selected overactive bladder patients.
Pelvic Floor Rehabilitation and Incontinence
Pelvic floor physical therapy addresses muscle coordination, continence and pelvic organ support. This section focuses on assessment and conservative care for women. Begin with the patient's symptoms and goals, then choose examination and treatment within your clinical scope.
Pelvic Floor Functional Anatomy
The levator ani and coccygeus form the pelvic diaphragm. Puborectalis passes behind the anorectal junction as a sling. It helps maintain the anorectal angle for continence and relaxes during defecation. Iliococcygeus arises in part from the tendinous arch along the obturator internus fascia and contributes to posterior support. Coccygeus extends from the ischial spine toward the lower sacrum and coccyx. The pelvic floor supports the organs and works with the urethral and anal sphincters. Coordinated relaxation is important during voiding and defecation.
The superficial urogenital region includes bulbospongiosus, ischiocavernosus and superficial transverse perineal muscle. In women, the striated urethral sphincter complex includes the sphincter urethrae, compressor urethrae and urethrovaginal sphincter. The external anal sphincter surrounds the anal canal in the anal region. The pudendal nerve arises from S2–S4 and supplies the external anal sphincter and other perineal structures. Human dissection identifies a direct sacral nerve supply to levator ani. Anatomical studies differ on whether there is an additional pudendal contribution to parts of the levator.
Differential Diagnosis of Urinary Incontinence
Urinary incontinence is involuntary urine loss. Take a history of triggers, urgency, frequency, emptying, medications and toileting access. Use a urine test through the local pathway to assess infection or other abnormalities. Measure post-void residual when voiding difficulty or recurrent infection suggests incomplete emptying. The measured volume must be interpreted with the symptoms and circumstances.
| Pattern | Findings that guide classification | Initial direction |
|---|---|---|
| Stress urinary incontinence (SUI) | Leakage with cough, sneeze or physical effort. | Supervised pelvic floor muscle training (PFMT). |
| Urgency urinary incontinence (UUI) | Leakage associated with a sudden, compelling urge. It may occur as part of overactive bladder (OAB). | Supported bladder training and review of fluid and caffeine intake. |
| Mixed urinary incontinence (MUI) | Both stress and urgency leakage. | Address the predominant symptom and combine PFMT and bladder training as indicated. |
| Leakage associated with retention (historically called overflow incontinence) | Weak stream, hesitancy, incomplete emptying or dribbling can occur with impaired emptying. | Arrange medical assessment and evaluate residual urine as appropriate. Acute inability to void requires urgent assessment. |
| Functional contribution | Mobility, cognition or the environment may prevent timely toileting. This can coexist with bladder symptoms. | Improve access, transfers, cueing or clothing as appropriate, alongside assessment of bladder symptoms. |
Reduced urethral support or impaired sphincter function can contribute to stress leakage. Identify the stress pattern from the history and assessment, and investigate the mechanism if it will change management. OAB is a symptom syndrome centered on urgency, usually with frequency or nocturia, with or without urgency leakage, after considering infection or other causes. Detrusor overactivity describes involuntary contractions observed during bladder filling on urodynamic testing. The AUA/SUFU guideline interprets residual urine with the voiding history and examination and identifies no universal elevated threshold. Refer for concerning findings such as hematuria, persistent bladder or urethral pain, new neurological signs or difficulty emptying. Apply emergency spinal screening if new urinary dysfunction occurs with concerning back and neurological symptoms.
Pelvic Organ Prolapse (POP)
Prolapse is descent of the anterior or posterior vaginal wall, uterus or vaginal apex. Record the compartment and symptoms separately. An anterior wall prolapse can involve bladder descent. A posterior wall prolapse may involve rectal bulging, often called rectocele. An enterocele involves descent of a peritoneal sac that can contain small bowel. Apical descent involves the cervix or vaginal apex. Symptoms can include bulge, pressure or difficulty with emptying.
In the POP-Q system, the hymen is the zero reference. A point above it is negative and one below it is positive. Use the most distal point on straining for staging, along with the required measurements. Total vaginal length (TVL) helps distinguish the advanced stages.
| POP-Q stage | Leading edge or description |
|---|---|
| 0 | No prolapse under the POP-Q measurement criteria. |
| I | Criteria for stage 0 are unmet and the most distal point is more than 1 cm above the hymen. |
| II | The most distal point is between −1 cm and +1 cm, inclusive. |
| III | The most distal point extends more than 1 cm beyond the hymen but falls short of TVL minus 2 cm. |
| IV | The most distal point reaches or exceeds TVL minus 2 cm, consistent with near-complete or complete eversion. |
An incidental examination finding and a bothersome bulge have different implications. Ask about symptoms, bladder and bowel function and treatment goals. NICE NG210 suggests considering at least four months of supervised PFMT for symptomatic prolapse extending no more than 1 cm beyond the hymen. NG123 describes a minimum of 16 weeks for symptomatic POP-Q stage I or II. Discuss constipation management and load modification when relevant, and coordinate pessary or specialist assessment according to symptoms and preference. Individualized PFMT improved reported prolapse symptoms in the POPPY trial.
Pelvic Floor Muscle Assessment and Training
When a digital vaginal assessment is indicated, explain its purpose, offer appropriate privacy and a chaperone under local policy, and obtain consent. A clinician trained and authorized to perform the exam checks whether the patient can contract and fully relax and whether the task causes pain. If the patient declines or the examination is unsuitable, discuss alternatives or referral. Document the method, contraction quality, hold time, repetitions, relaxation and symptoms.
| Modified Oxford grade | Palpation finding |
|---|---|
| 0 | No detectable contraction. |
| 1 | Flicker. |
| 2 | Weak increase in tension with no discernible lift. |
| 3 | Moderate contraction with lift. |
| 4 | Good contraction with lift that resists some examiner pressure. |
| 5 | Strong contraction with lift that resists greater examiner pressure. |
Use the scale as an ordinal clinical estimate. Assess endurance and coordination separately. Cue a squeeze and inward lift, then full release, with comfortable breathing. Observe whether the patient bears down or relies on other movements. In someone with pain and difficulty relaxing, assessment may instead support relaxation and coordination work.
NICE NG123 recommends at least three months of supervised PFMT as first-line treatment for stress or mixed urinary incontinence, with a programme including at least eight contractions three times daily. Tailor hold time, rest, effort and starting volume to a contraction the patient can repeat and release. Progress positions and the task demand. Monitor symptoms and adherence and review the plan during the programme and at its end. For a patient who can contract voluntarily and has stress leakage, teach the Knack by timing the contraction immediately before and through a cough, then releasing it. The original experiments found an immediate reduction in cough-related leakage in selected women.
Biofeedback, Stimulation and Bladder Neuromodulation
Surface EMG can give feedback about activation and release. Interpret the amplitude with electrode setup, symptoms and clinical examination. The OPAL trial found no important added continence benefit from routine EMG biofeedback with PFMT in women with stress or mixed incontinence who could already contract. NICE NG123 advises against routinely adding electrical stimulation. Biofeedback or stimulation can be considered when an active contraction cannot be performed, following consent, clinical assessment and the device instructions.
NICE does not recommend routine electrical stimulation for women with OAB. Percutaneous tibial nerve stimulation (PTNS) targets the tibial nerve near the ankle and is a separate specialist bladder neuromodulation option. AUA/SUFU includes PTNS after an inadequate response to or intolerance of behavioral or drug therapy. The SUmiT trial compared a 12-week course with sham and found more patients reported moderate or marked improvement with PTNS. Select a separate evidence-based protocol for the actual device and indication when considering pelvic probes or surface stimulation.
Bladder Training and Clinical Follow-up
For urgency or mixed incontinence, NICE NG123 recommends at least six weeks of bladder training as first-line care. A diary covering at least three representative days can capture intake, void times and volumes, urgency and leakage. Agree on a starting interval from the diary and gradually extend it if tolerated. Urge management can include pausing, relaxing the breath and trying a brief pelvic floor contraction if appropriate. Adapt the plan for toileting safety, bladder emptying and medical restrictions. Discuss caffeine reduction and individual fluid changes based on intake and symptoms.
Worked case. A 48-year-old reports small leaks with sneezing and step aerobics, without urgency or emptying symptoms. A consented examination shows a weak squeeze without lift, grade 2 on the Modified Oxford Scale. The anterior wall leading edge is 0.5 cm above the hymen during straining, recorded as −0.5 cm. This supports a stress leakage pattern and describes stage II anterior descent. Assess whether the descent is bothersome. Begin supervised PFMT with achievable repetitions and full release, and teach cough precontraction once she can reproduce a voluntary contraction. Track leakage during step exercise to guide progression and follow up on any new urgency, bulge or voiding symptoms.
A 52-year-old reports involuntary leakage immediately after a sudden compelling urge when she hears running water. She reports no leakage with coughing or exercise and no difficulty emptying. Which pattern best fits?
Stress urinary incontinence
Urgency urinary incontinence
Leakage associated with chronic retention
Leakage primarily due to a functional barrier to toileting
On a consented digital pelvic floor examination, the therapist detects a weak increase in tension without a discernible lift. Which Modified Oxford grade applies?
Grade 0
Grade 1
Grade 2
Grade 3
An adult with idiopathic overactive bladder has persistent urgency incontinence despite behavioral therapy and could not tolerate drug therapy. Which option can be discussed for specialist bladder neuromodulation under AUA/SUFU guidance?
A fixed 50 Hz pelvic probe regimen to selectively strengthen fast-twitch fibers
Continuous sphincter stimulation until fatigue
Treating the detrusor with local thermal ultrasound
Percutaneous tibial nerve stimulation using a posterior tibial nerve target
A patient with stress urinary incontinence can contract and relax her pelvic floor voluntarily. She leaks when coughing. Which task-specific technique should she practice?
Contract just before and through the cough, then relax
Begin the contraction only after coughing
Hold a maximal contraction throughout quiet breathing before the task
Substitute a gluteal squeeze for the pelvic floor contraction
Sections you finish are checked off in the contents.