Obturator hernia pathophysiology

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Obturator hernia Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Pathophysiology

• Obturator foramen is a large, obliquely oriented opening, located at the anterior aspect of both sides of pelvis, bounded by parts of ischium and pubis.
• This hernia passes through the obturator foramen, following the path of the obturator nerve and blood vessels.
• Hernia passes through the following layers
  • Obturator internus muscle fibres
  • Obturator membrane
  • Obturator externus muscle fibres
• Obturator hernias are more common on the right, presumably due to sigmoid colon on the left.