Definition Muscle twitches are fine movements of a small area of muscle. Alternative Names Muscle fasciculation; Fasciculations of muscle Considerations Muscle twitching is caused by minor muscle contractions in the area, or uncontrollable twitching of a muscle group that is served by a single motor nerve fiber. Muscle twitches are minor and often go unnoticed. Some are common and normal. Others are signs of a nervous system disorder. Common Causes Diet deficiency Drug overdose (caffeine) Drug side effect (such as from diuretics, corticosteroids, or estrogens) Exercise Twitches not caused by disease or disorders (benign twitches)
Often affecting the eyelids, calf, or thumb Normal and quite common, often triggered by stress or anxiety Come and go, and do not last for more than a few days Nervous system conditions that can cause muscle twitching: Amyotrophic lateral sclerosis ( ALS - Lou Gehrig's disease) Damage to the nerve that leads to a muscle Muscular dystrophy Spinal muscular atrophy Weak muscles (m...
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An eyelid twitch is a general term for involuntary spasms of the eyelid muscles. In some instances, the eyelid may repeatedly close (or nearly close) and re-open.This article discusses eyelid twitches in general.
Eyelid spasm; Eye twitch; Twitch - eyelid; Blepharospasm
Causes, incidence, and risk factors
The most common things that make the muscle in your eyelid twitch are fatigue, stress, and caffeine. Once spasms begin, they may continue off and on for a few days. Then, they disappear. Most people experience this type of eyelid twitch on occasion and find it very annoying. In most cases, you won't even notice when the twitch has stopped.
More severe contractions, where the eyelid completely closes, are possible. These can be caused by irritation of the surface of the eye (cornea) or the membranes lining the eyelids (conjunctiva).
Sometimes, the reason your eyelid is twitching cannot be identified. This form of eyelid ...
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