‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

Muscle spasms are the sudden, intense and uncontrollable contraction of muscles. They're painful and frustrating, and can stop athletes in their tracks or jolt someone awake in the middle of the night ...

Although muscle spasms are usually short lived and aren’t serious, they can be painful. Stretching can be particularly helpful at relieving a muscle spasm. Other home treatments like massage, using ...

A muscle spasm — also known as a charley horse, muscle cramp or twitch — is a sudden, involuntary movement in one or more muscles. Common causes include stress, exercise, or dehydration, but nerve ...

Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

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 ...