muscle twitch
Sudden fiber jerk
A muscle twitch is a brief, involuntary contraction of muscle fibers, often visible under the skin.
Twitches commonly occur in eyelids, thumbs, or calves, usually from fatigue, caffeine, or stress rather than serious conditions.
The medical term is fasciculation.
My eye has been twitching all day.
- spasmInvoluntary muscle contraction
- crampPainful muscle seizure
- leg crampInvoluntary muscle contraction
- jerkAbrupt pulling motion
- tremorInvoluntary rhythmic shaking
tic · flutter · quiver · eyelid · fasciculation · involuntary · nerve · nerve impulse · contraction · flinch · shudder · pulse · ripple · fatigue · caffeine · stress · magnesium · reflex
- body responsesfight, flight, shivering, freeze, goosebumps
- biological movementlocomotion, crawling, walking, running, swimming
- body signalsheartbeat, pulse, brainwaves, brain waves, brainwave
- reflexesreflex, reflexes, reflex action, reflex response, quick reflexes
- electrical injurieselectric shock, electrocution, lightning strike, electrical burn, entry wound
muscle, muscles, muscled, muscling, muscular, musculature, muscularity, twitch, twitches