Have you ever been surprised by an unexpected twitch in your left eye and wondered if it might be more than just a harmless ...

A muscle twitch is a short contraction that sometimes occurs repeatedly − think eye twitching. Such movement can be uncomfortable and inconvenient, but it isn't usually painful.

A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden, involuntary forced contraction of a muscle. Here are the main causes.

You won’t always know that TMJ disorder has caused nerve damage. However, if you have symptoms such as numbness, muscle spasms, or pain that feels like a shock, you likely have some nerve damage.

The Food and Drug Administration said it has approved Botox, a drug made by Irvine-based Allergan Inc., for treating upper-limb muscle spasms. Under the regulators’ action, Allergan will be able to ...

The doctor took to Instagram to share the medical explanations behind some of the more bizarre and uncomfortable daily symptoms we all experience ...

Abdominal muscle spasms after situps can be a sign that you're overdoing it during workouts. Other possible causes include dehydration or electrolyte imbalance.