Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

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 ...

We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Just like humans, cats can occasionally twitch in their sleep. In most cases, this body movement is normal and shouldn’t be cause for concern. However, it could signify something is wrong with your ...

Muscle spasms are sudden, involuntary contractions of one or more muscles. These spasms can be intensely painful and can last from a few seconds to several minutes. They often occur in the legs, but ...

‌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 ...