Muscle jumping can be caused by physiological factors or pathologic factors, such as restless legs syndrome, electrolyte disorders, epilepsy and other causes. 1. Physiological factors: for example, uncontrolled muscle jumping due to overwork or mental stress, which can be relieved by resting. 2. Restless Legs Syndrome: mostly occurs at night, when a certain muscle keeps on throbbing, seriously affecting sleep. 3. Electrolyte disorders: for example, low calcium, low potassium, low sodium can appear muscle jumping, after replenishing electrolytes, the symptoms will be relieved. 4. Epilepsy: A localized muscle throbbing can occur during a limited seizure, which can be relieved on its own. Therefore, if muscle throbbing occurs repeatedly, you need to go to the hospital to identify the cause for further treatment.