Add Yahoo as a preferred source to see more of our stories on Google. A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle.

Rory McIlroy withdrew from the third round of the Arnold Palmer Invitational on Saturday when he felt muscle spasms in his ...

A muscle spasm could mean more than pain in your back — it could also hurt your ears. Despite being the leading cause of ...

Add Yahoo as a preferred source to see more of our stories on Google. You've likely heard of sciatica before. The shooting pain that runs down your lower back, buttocks and leg can disrupt your daily ...