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 ...

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 ...

Twitching leg muscles aren't uncommon after a long walk or exercise session. Although muscle twitches may cause you to worry about the health of your leg muscles, in most cases, twitching doesn't ...