Muscle spasms or cramps are contractions of the muscles and are often painful. Muscle twitching is the result of minor local muscle contractions or the uncontrollable twitching of a single muscle group served by a single motor nerve fiber or filament. Considerations Muscle cramps most often occur in the foot or in the calf muscle.
Muscle twitches are minor and often go unnoticed.
Some are common and normal, while others indicate a neurologic disorder. Please read it.