A pinched nerve is a nerve with pressure applied to it. In the spine, a pinched nerve is usually caused by a herniated disk pressing on it.
Symptoms of a pinched nerve are:
- weakness
- tenderness
- prickly sensation
- stabbing sensation
- burning sensation
Sciatica is a symptom, characterized by pain down one leg, and brought about when the largest nerve in the body, the sciatic nerve, is irritated.

