Leaking stool (bowel incontinence)

Category: Digestive & Abdomen · All digestive symptoms

Leaking stool (bowel incontinence) — Digestive & Abdomen

What it can feel like

Leaking stool — bowel incontinence — means stool or soiling escapes before you reach the toilet, from small stains to full loss of control. It is more common than people think, rarely talked about, and often improvable once the mechanism — muscle weakness, nerve problems, loose stool, or rectum sensitivity — is understood.

Possible causes

A symptom can have many causes, and most are not serious. The lists below group conditions this symptom can be associated with — common causes first. They are possibilities to discuss with a clinician, not a diagnosis.

Common causes

Leaking can be associated with loose stools or diarrhoea, constipation with overflow leakage, weakened pelvic floor after childbirth, haemorrhoids or a prolapse interfering with sealing, and ageing of the anal muscles.

Other possible causes

Incontinence can also be associated with nerve damage from diabetes, spinal or neurological conditions, previous anal or childbirth injury, and inflammation of the rectum. New incontinence with leg weakness or numbness around the saddle area is an emergency pattern.

Red flags — when to seek help promptly

  • New incontinence with numbness around the bottom or back passage, leg weakness or bladder changes — emergency
  • Leaking with blood in the stool or weight loss
  • Leaking with severe diarrhoea and dehydration
  • A sudden change in bowel control after surgery or childbirth

What a clinician may do

A clinician will ask sensitively about the pattern — urgency, passive leakage, stool consistency — and examine the rectum and pelvic floor. Stool tests, scans of the anal muscles, pressure studies (manometry) and pelvic-floor physiotherapy referral are the usual steps.

Watch: related videos

Examination and clinical videos from the MedicalVideos.com library relevant to this symptom. Some clinical footage is graphic — that is the nature of a medical video library.

Frequently asked questions

Is it worth mentioning something so embarrassing?

Yes — clinicians hear about it often, effective treatments exist for most mechanisms (diet and stool firming, pelvic-floor training, biofeedback, and surgical options for some), and it can occasionally signal something that needs urgent attention. Nothing about it should be suffered in silence.

What is overflow leakage?

When hard stool is stuck in the rectum, liquid stool from above can seep around it and leak out — looking like diarrhoea but actually driven by constipation. Treating the impaction, rather than anti-diarrhoea medicines, is the answer.

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Please note: This page is educational information about a symptom. A symptom alone cannot diagnose any condition, and the causes listed here are possibilities, not a diagnosis. If you are worried about a symptom — especially one that is new, severe, getting worse or not going away — please see your own clinician, who can examine you and arrange tests. In an emergency, call your local emergency number.