What is piriformis syndrome, Andie MacDowell suffers from?

Andie MacDowell, 66, revealed on The Drew Barrymore Show that she has been diagnosed with piriformis syndrome, which causes sciatic nerve pain. Treatment and diligent hip exercises have relieved her symptoms, describing the improvement as 'a miracle.' Piriformis syndrome is a rare condition causing pain and numbness in the buttocks and down the leg.

What is piriformis syndrome, Andie MacDowell suffers from?
Andie MacDowell, 66, revealed on The Drew Barrymore Show that she has been diagnosed with piriformis syndrome, which causes sciatic nerve pain. Treatment and diligent hip exercises have relieved her symptoms, describing the improvement as 'a miracle.' Piriformis syndrome is a rare condition causing pain and numbness in the buttocks and down the leg.