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 ...

Muscle twitches, often experienced as sudden, involuntary movements in the muscles, are common yet can raise concerns for some individuals. These small, rapid contractions, medically known as ...

Tweaked by a muscle twitch? From an uncontrollable fluttering eyelid to a pulsing calf muscle, these small, rapid involuntary muscle contractions may happen at any time — and can be annoying. A common ...

Medically reviewed by Nicholas R. Metrus, MDMedically reviewed by Nicholas R. Metrus, MD Almost all of us will have experienced a fasciculation at one time or another. A fasciculation is simply a ...

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 ...

Sometimes our bodies do odd things. A friend recently asked me about her twitchy eye, and my own eye muscles twitch once in a while. Have you ever wondered why? The medical term is blepharospasm, and ...

Isaacs’ syndrome is a disorder that affects the peripheral nervous system. It’s sometimes classified as an autoimmune disorder, but not always. Some of these terms are used inconsistently to refer to ...

Hemifacial spasms happen when a blood vessel puts excess pressure on a facial nerve, per the National Institute of Neurological Disorders and Stroke (NINDS). They can also be caused by external nerve ...

Spinal bulbar muscular atrophy (SBMA) causes a loss of motor neurons in the spinal cord and brainstem. It mainly affects facial and swallowing muscles and the muscles in the arms and legs. Previously, ...

ALS, or amyotrophic lateral sclerosis, is a progressive neurodegenerative disorder affecting the motor neurons in the central nervous system. The early symptoms of ALS include muscle twitching or ...