Related Experiment Video
Updated: Apr 22, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
Published on: September 20, 2018
Association between mode of delivery and pelvic floor dysfunction
Guri Rørtveit1, Yngvild S Hannestad2
1Allmennmedisinsk forskningsenhet i Bergen Uni Research Helse og Forskningsgruppe for allmennmedisin Institutt for global helse og samfunnsmedisin Universitetet i Bergen.
Caesarean sections reduce the risk of urinary incontinence and pelvic organ prolapse compared to vaginal delivery. However, this protective effect diminishes with age for incontinence, and caesarean sections offer limited population-level prevention for pelvic floor dysfunction.
Area of Science:
- Obstetrics and Gynecology
- Pelvic Floor Disorders
- Women's Health
Background:
- Vaginal delivery places significant strain on the pelvic floor.
- Pelvic floor disorders, including urinary incontinence and pelvic organ prolapse, are common postpartum complications.
Purpose of the Study:
- To review current knowledge on vaginal delivery as a risk factor for pelvic floor dysfunction.
- To compare the risks of urinary incontinence, pelvic organ prolapse, and anal incontinence between vaginal delivery and caesarean section.
Main Methods:
- Literature search of PubMed focusing on systematic reviews and meta-analyses.
- Inclusion of articles from personal literature archives.
- Search completed in January 2014.
Main Results:
- Caesarean section is associated with lower rates of urinary incontinence and pelvic organ prolapse compared to vaginal delivery.
- The protective effect of caesarean section against urinary incontinence diminishes in women over fifty.
- Risk of pelvic organ prolapse increases with the number of vaginal deliveries; caesarean section offers limited protection against anal incontinence postpartum, except in cases of previous anal sphincter rupture.
Conclusions:
- Women who deliver solely via caesarean section have lower prevalence of urinary incontinence and pelvic organ prolapse.
- The difference in urinary incontinence risk between delivery modes appears to decrease with age.
- Caesarean section has a limited primary preventive effect on pelvic floor dysfunction at a population level, with anal sphincter rupture being a key risk factor for anal incontinence.
Related Concept Videos
Muscles of the Pelvic Floor and Perineum
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Development of the Oral Microbiota
Intrauterine Drug Delivery Systems
Disorders of the Female Reproductive System
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Urodynamic Studies: Uroflowmetry

