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Updated: May 16, 2026

Nerve-sparing Mid-urethral Obstruction (NeMO) in Female Small Rodents
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Published on: April 25, 2017

Voiding Dysfunction Associated with Pudendal Nerve Entrapment.

Marc Possover1, A Forman

  • 1Department for Gynecology/Oncology & Neuropelveology, Hirslanden Clinic, Zürich, Switzerland ; Department of Gynecology & Neuropelveology, University of Aarhus, Aarhus, Denmark.

Current Bladder Dysfunction Reports
|November 20, 2012
PubMed
Summary
This summary is machine-generated.

Pudendal nerve entrapment (PNE), or Alcock canal syndrome, causes chronic pelvic pain worsened by sitting. Diagnosis involves clinical examination and nerve blocks, differentiating it from other neuropathies like sacral radiculopathies.

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Published on: August 28, 2020

Area of Science:

  • Neurology
  • Pain Medicine
  • Pelvic Health

Background:

  • Pudendal nerve entrapment (PNE), also known as Alcock canal syndrome, is an infrequent cause of chronic pelvic pain.
  • Symptoms include perineal, genital, and perianal pain, exacerbated by sitting.

Purpose of the Study:

  • To highlight the diagnostic challenges and differential diagnoses of pudendal nerve entrapment.
  • To emphasize the importance of distinguishing PNE from other neuropathies causing pudendal pain.

Main Methods:

  • Diagnosis relies on patient history (anamnesis) and clinical examination, including palpation of pelvic nerves.
  • Selective nerve blockade is a key diagnostic tool.
  • Differential diagnosis includes sacral radiculopathies (S2-S4 nerve roots).

Main Results:

  • PNE can manifest as isolated pain or, in cases of neurogenic damage, with numbness and incontinence.
  • Common causes include obstetric trauma, genitourinary surgeries, accidents, and surgical errors.
  • Sacral radiculopathies can mimic PNE, presenting with sacral dermatome pain, bladder hypersensitivity, or retention.

Conclusions:

  • Pudendal pain necessitates a thorough evaluation to rule out PNE and other potential causes like sacral radiculopathies.
  • Accurate diagnosis is crucial for effective management of chronic pelvic pain originating from pudendal nerve issues.