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Neurogenic bladder and bowel

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Escalate

New urinary retention or incontinence with saddle sensory change, bilateral sciatica, leg weakness or bowel dysfunction is cauda equina or cord compression until urgently assessed and imaged. Fever or sepsis with retention or upper-tract obstruction, acute kidney injury, clot retention and autonomic dysreflexia require immediate urological, spinal and medical escalation.

Synopsis

Identify storage, emptying and bowel dysfunction caused by neurological disease, protect renal and skin health, recognise spinal emergencies and build an individual catheter, continence and bowel programme with specialist teams.

  • Describe bladder symptoms as storage—urgency, frequency, nocturia, incontinence—or voiding—hesitancy, weak stream, straining, incomplete emptying and retention—then add sensation, catheter use, infections and renal history.
  • Ask bowel frequency, stool form, urgency, passive or urge leakage, straining, digital stimulation or evacuation, impaction, abdominal symptoms, diet, fluids, mobility, toilet access and the current timed programme.
  • Neurological context includes spinal cord injury or compression, multiple sclerosis, spina bifida, cauda equina or peripheral neuropathy, Parkinsonism, stroke, dementia and autonomic disorders; the same diagnosis can produce mixed physiology.

Key red flags

Detrusor–sphincter dyssynergia

Interrupted flow, high voiding pressure, incomplete emptying and recurrent infection in a suprasacral cord disorder suggests simultaneous sphincter and bladder contraction, a pattern capable of upper-tract damage.

Investigation priorities

01
Three-day bladder and bowel diaryFirst step

Quantify fluids, voiding, catheter volumes, leakage, stools, interventions, symptoms and timing in the person's usual environment.

Management branches

New retention with neurologyExclude spinal compression now

Urinary retention or altered sensation appears with back pain, radicular symptoms, saddle change, leg weakness or new bowel or sexual dysfunction.

  1. Perform ABCDE and analgesia, document onset and bladder volume, examine legs and perineal sensation and assess renal function, infection and medication contributors without repeatedly traumatising the patient.
  2. Contact the emergency spinal or neurosurgical service and arrange MRI through the local cauda equina or cord-compression pathway; catheterise retention using appropriate technique while preserving measurements.
Ineffective bowel programmeRebuild timing and consistency

Constipation, prolonged evacuation, impaction, autonomic symptoms or leakage persists despite an existing neurological bowel routine.

Key medicines

Clean intermittent catheterisationIndividualise catheter size and frequency to fluid intake, measured catheter volumes, storage pressure and residual, commonly emptying four to six times daily while avoiding bladder overdistension under continence-team instruction.
Oxybutynin for neurogenic detrusor overactivityAn experienced prescriber may start immediate-release oxybutynin 2.5–5 mg two or three times daily and titrate to bladder response and adverse effects, following local formulary and specialist urodynamic goals.
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Sources and review status4 sources · checked 27 Aug 2026 · clinical review pending
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 27 Aug 2026; clinical approval remains outstanding.

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom