Skip to textbook content
Doctor’s PassportTextbook
TopicsAll topics

Loading topic navigation…

Textbook navigation
TopicsAll topics

Loading topic navigation…

Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Rectal prolapse and faecal incontinence

Gastroenterology and hepatology · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

RapidFull
!
Escalate

An incarcerated prolapse that cannot be reduced, becomes dusky or necrotic, causes severe pain, obstruction or substantial bleeding needs urgent colorectal review. New faecal incontinence with saddle sensory loss, urinary retention or progressive leg weakness requires emergency assessment for cauda equina compression.

Synopsis

Differentiate rectal prolapse from haemorrhoidal or pelvic-organ prolapse, assess faecal incontinence systematically, and progress from reversible causes to specialist functional treatment.

  • Full-thickness rectal prolapse produces concentric circumferential folds; prolapsing haemorrhoids form discrete radial columns, while mucosal prolapse is a more limited lining descent.
  • Symptoms include a protruding mass, mucus, bleeding, incomplete evacuation, obstructed defaecation, urgency and passive leakage; patients may need to photograph an intermittent prolapse.
  • Faecal incontinence means involuntary loss of stool that is a social or hygienic problem and should be asked about directly and without stigma.
  • Urgency incontinence suggests inability to defer despite sensation; passive leakage suggests impaired sensation or resting sphincter function; post-defaecation seepage suggests incomplete evacuation.
  • First identify treatable drivers such as diarrhoea, faecal impaction with overflow, medicines, infection, rectal loading, cognitive or mobility barriers and inadequate toilet access.
  • A focused examination includes abdomen, perineum, prolapse during strain, anal sensation, digital rectal examination, sphincter squeeze and relevant neurological findings.
  • Initial continence care aims for predictable formed stool, planned toileting, skin protection and pelvic-floor or bowel-retraining support rather than reflex antidiarrhoeal prescribing.
  • Persistent symptoms may need anorectal physiology, endoanal ultrasound, defaecography and multidisciplinary treatments such as biofeedback, irrigation, sphincter repair, rectopexy or sacral neuromodulation.

Key red flags

Incarcerated prolapse

A swollen irreducible segment with escalating pain, bleeding, ulceration or dusky colour suggests venous obstruction and threatened ischaemia, requiring urgent specialist reduction or surgery.

Neurological emergency

Abrupt incontinence with urinary retention, saddle numbness, bilateral sciatica or leg weakness may represent cauda equina syndrome and requires immediate spinal pathway assessment rather than routine pelvic-floor referral.

Cancer or inflammatory warning

Weight loss, anaemia, persistent bleeding, a hard rectal mass, nocturnal diarrhoea or new bowel change requires colorectal investigation even when prolapse or incontinence is visible.

Investigation priorities

01
Bowel and continence diaryFirst step

Define stool form, timing, triggers, urgency, leakage and toileting context.

Management branches

BaselineStructured continence assessment

Any involuntary stool loss that causes a social or hygienic problem.

  1. Ask sensitively about solid, liquid and flatus leakage, awareness, urgency, frequency, obstetric and surgical history, stool form, diet, medicines, cognition, mobility and toilet access.
  2. Treat immediate reversible causes including faecal loading, acute diarrhoea, infection and medication effects; investigate red flags and provide skin protection and practical containment meanwhile.
  3. Aim for a predictable Bristol type 3 to 4 stool using individualised diet, fibre or antidiarrhoeal strategies, avoiding a generic high-fibre instruction that could worsen loose stool or bloating.
  4. Refer persistent symptoms to a specialist continence service for bowel retraining, pelvic-floor exercises, biofeedback and targeted physiology or imaging.

Key medicines

LoperamideStart low and titrate timing and amount under the continence plan.First exclude impaction, acute inflammatory diarrhoea and obstruction. Excess dosing causes constipation and overflow; use cautiously with severe colitis and follow BNF or local advice.
Bulk-forming fibre preparationIntroduce gradually with adequate fluid and adjust against the stool diary.May worsen bloating or leakage in some patients and is unsuitable in obstruction or impaction. Individualise rather than prescribing fibre automatically for every phenotype.
Open full textbook →Answer 2 questions
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.

  • NICE CG49 faecal incontinence recommendationsBaseline assessment, conservative, specialised and surgical management.
  • NICE sacral nerve stimulation guidanceInterventional guidance for selected faecal incontinence.
  • ACPGBI bowel incontinence informationSpecialist UK overview of causes, testing and treatment.
  • NHS rectal prolapse surgical overviewOfficial NHS description of prolapse and perineal procedures.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom