Duration. : Spasms occur when a muscle tightens up and does not relax for a long period of time. A calf cramp would be an example of a muscle spasm. They tend to last much longer than a twitch which is usuall brief. Twitching would be when the muscle fires briefly like blinking your eye. Multiple twitches in succession can feel like the muscle is vibrating.
Answered 7/11/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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