What Causes Rectal Prolapse?
Rectal prolapse usually does not have one simple cause. It often develops through a combination of weakened rectal and pelvic support, altered bowel function, and repeated pressure or straining.
Not everyone with a risk factor develops prolapse, and some patients have no obvious single trigger.
Common Contributing Factors
Associated factors may include:
- Chronic constipation
- Repeated straining during bowel movements
- Chronic diarrhea or frequent bowel movements
- Pelvic-floor weakness
- Aging and loss of tissue support
- Prior childbirth or pelvic-floor injury
- Neurologic conditions that affect pelvic or bowel function
- Previous pelvic surgery in selected patients
- Other pelvic-organ prolapse
Can Constipation Cause Rectal Prolapse?
Longstanding constipation and straining can repeatedly increase pressure on rectal support structures. They may contribute to prolapse or make an existing prolapse more noticeable.
The relationship can also work in the opposite direction: prolapse may obstruct normal evacuation and worsen constipation. Treating constipation remains important even when it is not the only cause.
Can Diarrhea Contribute?
Chronic diarrhea, frequent bowel movements, and repeated urgency may place ongoing stress on the pelvic floor and irritate exposed tissue. A clinician may investigate persistent diarrhea rather than treating it as a minor symptom.
Does Childbirth Cause Rectal Prolapse?
Pregnancy and childbirth can contribute to pelvic-floor stretching or injury in some patients, but many people who develop rectal prolapse have other or additional factors. A history of childbirth does not prove that it caused the condition.
Why Is Rectal Prolapse More Common With Age?
Supporting tissues can weaken with age, and older adults may also have constipation, neurologic disease, or other pelvic-floor disorders. Rectal prolapse can nevertheless occur in younger adults and children, where causes and treatment considerations may differ.
Can You Prevent It From Getting Worse?
Treating constipation or diarrhea and avoiding repeated straining may reduce symptoms and stress on the pelvic floor. These measures do not usually reverse established full-thickness prolapse.
Review rectal prolapse treatment without surgery or learn more about types, causes, and diagnosis.
When to Arrange an Evaluation
Seek evaluation when tissue protrudes through the anus, constipation or incomplete emptying is worsening, or symptoms include bleeding, mucus drainage, or stool leakage.
Evaluation in Phoenix
Dr. Aisha Akhtar, MD evaluates rectal prolapse and associated bowel dysfunction for patients in Phoenix, Scottsdale, Glendale, and surrounding Arizona communities.
Schedule an Evaluation or call 602-932-5660.
Medical Sources
This page provides general education and does not replace individualized medical advice.
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