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Most people who have piriformis syndrome get better with treatment and lifestyle changes. Failure to treat this condition can lead to permanent nerve damage, so be sure to follow your doctorâs instructions.
Cause: Piriformis syndrome. The piriformis is a muscle found deep inside the buttocks. It connects the lower spine to the upper thighbone and runs directly over the sciatic nerve. If this muscle goes into spasm, it can put pressure on the sciatic nerve, triggering symptoms of sciatica.