Sciatica refers to the symptoms experienced when the sciatic nerve, which is the largest nerve in the body, is irritated. It can literally be a real pain in the butt.
That’s because the sciatic nerve branches from the lower back, through the hips and buttocks and down each leg. So the pain experienced by some three million Americans isn’t so much concentrated in the lower back, but radiates lower and usually only affects one side of the body. For some, the pain is debilitating; for others, it’s more of an annoyance with the potential to get worse. But for most, it’s easily treatable.