What causes a sciatic hernia?

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  • A sciatic hernia is a rare type of hernia that forms when part of a nearby organ pushes through the sciatic foramen - one of two openings on either side of the pelvis. These openings provide a natural passageway for ligaments and nerves running from the spine to the gluteus muscle (buttock) and upper thigh. Congenital openings or acquired openings along the lower abdominal wall in addition to intra-abdominal pressure (from pregnancy, severe constipation, trauma, surgery, or other events) can cause a hernia to form and in rare cases push through the sciatic foramen. About 20% of sciatic hernias are present in infancy.

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What is a sciatic hernia?