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The sciatic nerve is located deep in the buttock. Because of its vicinity to the piriformis muscle, constriction or swelling of the muscle may lead to irritation of the nerve and pain.

The sciatic nerve is located deep in the buttock. Because of its vicinity to the piriformis muscle, constriction or swelling of the muscle may lead to irritation of the nerve and pain. (Effects Of Bad Posture Lower Backs)

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