Does sciatica cause muscle twitching?

Sciatica: Sciatica is just a term used for an irritated or compressed nerve root and muscle twitching can also occur with this disorder.

Yes: Acutely compressed nerves can result in muscle twitching, muscle spasm and typical painful radiation patterns. This is due to the abnormal signal the nerves are now sending to the muscles which are reacting to its signal. Sometimes this is an involuntary action in which the nerve is reacting like a reflex arc that is on replay. This cycle of nerve signaling needs to be broken to improve this.