Everything You Need To Know About Myokymia

You could be having it, too.

We’ve been hearing a lot about myokymia lately. A recent news report featured a 12-year-old who is experiencing myokymia, and he is believed to have gotten it after being exposed to the pollutants at Sg. Kim Kim in Pasir Gudang, Johor. His symptoms include trembling due to involuntary muscle movements – something similar to the twitching experienced by Parkinson disease sufferers, a news report said.


But, what is myokymia, exactly? We spoke to Columbia Asia Hospital – Iskandar Puteri’s medical officer, Dr. Nuzul Hakim Ahmad, and here’s everything we know about this condition.

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What is Myokymia?

“Myokymia consists of two words — ‘myo’ that means muscle and ‘kymia’ that was derived from the French word ‘kymos’ which means wave. So, in combination ‘Myokymia’ means quivering of the muscle. What happens is the muscle fasciculate on its own and causes involuntary movement at the affected site.”

Causes and Symptoms

“It is an involuntary spontaneous localized quivering of few muscles, or bundled within a muscle but insufficient to move a joint.”

“It can be a normal phenomenon due to strenuous exercise, high intake of caffeine, stress, fatigue, dehydration and lack of sleep. The most common part of our body to experience myokymia is the eyelid, especially the lower eyelid. It can also affect other facial muscles and body parts. Other causes are magnesium deficiency, multiple sclerosis, myasthenia gravis, toxin, and alcohol.”

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