Occasional leg cramps are considered common and usually harmless, especially after physical exertion, dehydration, or ...

Night leg cramps, or nocturnal leg cramps, are sudden, involuntary muscle contractions that usually occur in the calves, feet, or thighs during rest or sleep. These painful spasms can last from a few ...

Ever been sound asleep, only to be startled awake by a stabbing pain in your calf or hamstring? These sudden, intense muscle spasms are better known as charley horses. And they happen to up to 60% of ...

Stiff person syndrome (SPS) causes you to have muscle stiffness and spasms, often triggered by sudden noises or touch. You can use medications like muscle relaxants and anticonvulsants to relieve ...