Lockjaw happens when your jaw muscles tighten up so much that you can't open your mouth properly. Tetanus is a serious bacterial infection that can cause lockjaw and muscle spasms. TMJ disorders can ...

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.

The infectious disease can cause muscle spasms strong enough to fracture bones. It's fully preventable, but vaccination rates are slipping.

You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or your foot that begins to spasm—sometimes for a few seconds, sometimes for ...

Ms. D’s muscle spasms were improved after administration of IV diazepam (Valium). In the critical care unit, Ms. D was observed closely for cardiopulmonary deterioration. Serial vital capacity ...

Dehydration may be one cause of muscle cramps, and some evidence suggests that electrolyte imbalances also contribute to them. Muscle cramps are painful, involuntary contractions of the muscles that ...

Every doctor wants to see a smile on a patient's face, but there is one that no doctor ever wants to see: risus sardonicus, sometimes known as the sardonic grin or the devil's smile, the cruel mark of ...

Spontaneous muscle twitching can be an early symptom of ALS and a sign that motor neurons are damaged. But other causes can also contribute to muscle twitching. Consulting a doctor can help identify ...