If you're not sure what that really is, Dulak says it's a compression or irritation of a sciatic nerve. They run from your lower back down through your butt and into each leg (see the graphic, below).

The common finding of sciatic-trunk tenderness distal to a radiculopathy poses a major diagnostic problem. The sciatic nerve is derived from the sacral plexus, which is formed from the fourth and ...

For some people, sciatic nerve pain is a mild but persistent nuisance. And for others, especially during flares, sciatica ...

Review of the literature on relevant injection procedure found that injury to the sciatic nerve is associated with use of the dorsogluteal site for injection, because the sciatic nerve commonly ...