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Health condition

Bowel incontinence, a treatable problem that most people never mention.

Around 1 in 10 UK adults are affected, yet stigma keeps most people quiet. A structured pelvic floor plan - and, if needed, sacral nerve stimulation - genuinely changes lives.

Jump to treatment
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Why trust this guide

  • 01

    Editorial team

    Written by our editorial team from the UK sources listed on each page.

  • 02

    Sourced from guidance

    Checked against NICE CG49, IUGA and UK colorectal society standards you can see at the end.

  • 03

    Current for 2026

    Reflects modern UK pelvic floor pathways including sacral nerve stimulation, PTNS and rectal irrigation.

Key facts

Bowel incontinence at a glance.

The essentials, in plain English - what it is, the four main patterns and how it is treated in the UK today.

  • What it is

    Involuntary loss of solid stool, liquid stool or flatus - also called faecal incontinence, and significantly underreported due to stigma.

  • How common

    Around 1 in 10 UK adults are affected at some point, rising sharply after childbirth and in older age.

  • Four main types

    Urge (sphincter weakness), passive (leakage without warning), mixed and overflow (impaction with spurious diarrhoea).

  • Top driver in women

    Obstetric injury - vaginal delivery, forceps, third and fourth degree tears and occult sphincter damage on endoanal ultrasound.

  • First-line care

    Diet review, loperamide, bulking agents, pelvic floor muscle training with biofeedback and skin protection.

  • When to escalate

    Sacral nerve stimulation, PTNS, rectal irrigation, injectable bulking or sphincter surgery through a pelvic floor MDT.

Why this guide matters

A common problem, quietly borne.

Bowel incontinence carries more stigma than almost any other symptom, so people wait years. It should not be that way - the three points below shape everything else on this page.

  • It is a symptom, not a diagnosis

    The right treatment starts with finding the mechanism - urge, passive, mixed or overflow - and any obstetric, neurological or surgical trigger behind it.

  • First-line care works for most

    Loperamide, dietary changes, pelvic floor physiotherapy with biofeedback and treating impaction control symptoms in a large majority of patients.

  • Specialist options genuinely help

    Rectal irrigation, injectable bulking, sacral nerve stimulation and sphincter surgery restore control when first-line care isn't enough.

How the diagnosis is made

From symptom diary to a clear pelvic floor plan.

The steps a UK GP, colorectal or urogynae team will normally follow, in order - so you know what to expect and why.

  1. 01

    Assessing

    Focused history and scoring

    Bowel diary plus Cleveland Clinic (Wexner) and St Mark's incontinence scores put the pattern and severity on paper.

  2. 02

    Assessing

    Red flag screen

    Weight loss, rectal bleeding, anaemia or change in bowel habit prompt a 2WW colorectal referral before anything else.

  3. 03

    Assessing

    Perineal and rectal examination

    Inspection, digital rectal exam, resting and squeeze tone, cough test and a check for rectal prolapse or impaction.

  4. 04

    Investigating

    Endoanal ultrasound

    The gold standard for spotting internal and external sphincter defects, especially after childbirth or anal surgery.

  5. 05

    Investigating

    Anorectal manometry and sensation

    Measures resting and squeeze pressures, rectal sensation and the rectoanal inhibitory reflex to explain the mechanism.

  6. 06

    Investigating

    Endoscopy and imaging

    Flexible sigmoidoscopy, colonoscopy, defecating proctography or pelvic MRI to exclude cancer, IBD and structural causes.

  7. 07

    Planning

    Pelvic floor MDT

    Complex or refractory cases go to a joint colorectal, urogynae and specialist nurse team to plan the next step.

Typical timeline: initial diary to a settled specialist plan in weeks, not months.

Symptoms

What bowel incontinence actually looks like.

The pattern of symptoms points to the mechanism - and the features that mean it is time to escalate.

  • Urgency and inability to defer

    A sudden call to stool that cannot be held long enough to reach a toilet - typical of external sphincter weakness.

  • Passive leakage without warning

    Stool or mucus appearing in underwear without any urge - suggests internal sphincter dysfunction.

  • Flatus incontinence

    Inability to control wind, often the earliest symptom after an obstetric or anal surgical injury.

  • Nocturnal soiling

    Leakage at night is a particular red flag for significant sphincter or neurological disease.

  • Perianal skin excoriation

    Sore, broken or itchy skin from repeated exposure to stool - a barrier cream and dermatology-informed skin plan help.

  • Overflow with spurious diarrhoea

    Watery leakage around impacted stool, common in older or immobile patients on opioids or long-term laxatives.

  • Post-obstetric symptoms

    New urgency, leakage or wind incontinence after vaginal delivery, forceps or a significant perineal tear.

  • Red flag - bleeding or weight loss

    Rectal bleeding, unintended weight loss, anaemia or a change in bowel habit needs urgent 2WW colorectal review.

Treatment

How bowel incontinence is treated in the UK.

Diet, medication and pelvic floor physiotherapy first - rectal irrigation, injectable bulking, sacral nerve stimulation and surgery for refractory disease.

  • Diet and lifestyle

    Regular meals, adequate hydration, a trial of low FODMAP and avoiding caffeine, alcohol, spicy food and sorbitol often reduce episodes.

  • Loperamide

    The workhorse medication - slows transit, firms stool and improves continence for urge and mixed patterns.

  • Bulking agents and laxatives

    Ispaghula husk (Fybogel) firms loose stool; macrogol (Movicol) treats impaction and overflow.

  • Skin protection

    Barrier creams, gentle cleansing and emollients prevent excoriation and secondary infection.

  • Pelvic floor muscle training

    Specialist physiotherapy with biofeedback is evidence-based first-line care, often over 3 to 6 months.

  • Rectal irrigation (Peristeen)

    Scheduled transanal irrigation empties the rectum and gives predictable control - useful in neurogenic bowel and LARS.

  • Injectable bulking agent

    Solesta (NASHA/Dx) is injected into the anal canal to bulk the submucosa and reduce passive leakage.

  • Sacral nerve stimulation

    An InterStim implant modulates the sacral nerves supplying the pelvic floor - a 2-stage trial then implant for refractory disease.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or specialist knows your history and can tell you which parts apply to you. If in doubt, get seen.

  • NICE. Faecal incontinence in adults: management (CG49).

  • International Urogynecological Association (IUGA). Joint statements on anal incontinence.

  • Association of Coloproctology of Great Britain and Ireland (ACPGBI). Position statements on sacral nerve stimulation and pelvic floor surgery.

  • Royal College of Obstetricians and Gynaecologists (RCOG). Green-top guideline on management of third and fourth degree perineal tears.

  • Bladder & Bowel UK and Continence Foundation patient information.

Red flags

When bowel incontinence needs urgent attention.

Most cases are worked up through the GP and outpatient pelvic floor services. These are the situations that need something faster.

  • New rectal bleeding

    Fresh or dark blood mixed with stool, especially with weight loss or anaemia, needs urgent 2WW colorectal referral.

  • Unintended weight loss

    Losing weight without trying alongside a change in bowel habit is a colorectal cancer red flag.

  • Cauda equina features

    Saddle numbness, urinary retention, new leg weakness with new bowel incontinence is a neurosurgical emergency.

  • Acute onset after spinal symptoms

    Sudden faecal incontinence with back pain or lower limb neurology needs same-day assessment.

  • Post-radiotherapy bleeding or pain

    New symptoms after pelvic radiotherapy may signal radiation proctitis or a treatment complication.

  • Faecal impaction with confusion

    Overflow diarrhoea in a frail older adult with delirium needs prompt disimpaction and a full review.

  • Post-obstetric symptoms

    New urgency, leakage or wind incontinence after childbirth deserves an early perineal clinic assessment.

  • Rectal prolapse

    A visible prolapse, especially with bleeding or ulceration, needs colorectal review for repair options.

  • Severe psychological distress

    Social withdrawal, low mood or suicidal thoughts driven by symptoms need mental-health and specialist continence support.

Living with it

A treatable problem, with a clear ladder.

Four things that make the biggest difference day to day - a bowel diary, skin protection, consistent pelvic floor work and asking for a specialist referral early.

A quiet reminder

You are not alone with this.

Bladder & Bowel UK and the Continence Foundation both provide confidential support - and specialist nurses can be an enormous help.

  1. 01 Diary

    Track before you treat

    A one to two week bowel and food diary is the single most useful thing you can bring to your first appointment.

  2. 02 Skin

    Protect the skin first

    Gentle cleansing, a barrier cream and an emollient keep skin intact while other treatments have time to work.

  3. 03 Pelvic

    Commit to physiotherapy

    Pelvic floor training with a specialist physio, done consistently for months, has some of the best evidence in this field.

  4. 04 Speak up

    Ask for a specialist referral

    If first-line care is not enough, ask about sacral nerve stimulation, PTNS, irrigation or surgery through a pelvic floor MDT.

Frequently asked

Everything we get asked about bowel incontinence.

Quick answers on causes, tests, pelvic floor therapy and sacral nerve stimulation.

  • What is bowel incontinence?

    Bowel incontinence, or faecal incontinence, is the involuntary loss of solid stool, liquid stool or flatus. It affects around 1 in 10 UK adults, is more common after childbirth and in older age, and is significantly underreported because of stigma. It is a symptom of a treatable underlying problem, not a personal failing.

  • What are the main causes?

    The commonest drivers are obstetric injury (vaginal delivery, forceps, third and fourth degree tears), ageing with pelvic floor and sphincter weakening, previous anal surgery, low anterior resection syndrome after bowel cancer surgery, neurological disease such as MS, stroke or spinal cord injury, diabetes, IBD and IBS-D, and faecal impaction with overflow in frail patients.

  • When should I see a doctor?

    See your GP if leakage is affecting your daily life, if it is new after childbirth or anal surgery, or if it is accompanied by rectal bleeding, weight loss, anaemia or a change in bowel habit. Sudden new incontinence with back pain, saddle numbness or leg weakness is a neurosurgical emergency and needs same-day assessment.

  • What tests will I need?

    Assessment usually includes a symptom diary and validated scores (Cleveland Clinic and St Mark's), examination with resting and squeeze tone, endoanal ultrasound to look at the sphincters, anorectal manometry to measure pressures and rectal sensation, and flexible sigmoidoscopy or colonoscopy to rule out cancer and inflammatory bowel disease. Defecating proctography or pelvic MRI is added if a structural problem is suspected.

  • What can be done to help?

    Most people improve with a stepped plan - dietary changes, loperamide to firm stool, bulking agents, treating any constipation or impaction, barrier skin care and specialist pelvic floor physiotherapy with biofeedback. If symptoms persist, options include rectal irrigation (Peristeen), injectable bulking agents (Solesta), sacral nerve stimulation, percutaneous tibial nerve stimulation, sphincter repair or, occasionally, a stoma to give reliable control.

  • Does sacral nerve stimulation really work?

    For carefully selected patients with refractory bowel incontinence, sacral nerve stimulation (InterStim) offers meaningful improvement in continence and quality of life. It is delivered as a two-stage procedure - a trial period followed by permanent implant - through specialist pelvic floor services. It does not require a functioning sphincter and is often considered before more invasive surgery.

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