09/15/2025
When we think of sciatica, we often think about the sciatic nerve being injured or irritated.
In reality, most of the time “sciatica” comes from a disc herniation in the lower spine, which can irritate and sometimes compress a NERVE ROOT.
Think of a nerve root like a tree trunk that comes out of the spinal cord, eventually giving rise to the branches, sticks, and twigs (rest of the nerves).
The nerve root may give rise to the sciatic nerve, as well as many others, so it’s a bit misleading to make it all about the sciatic nerve.