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Leg shaking uncontrollably

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My 16 year old son came home from 1 hour bike ride. All the sudden his leg starting shaking uncontrollable. It will start and then stop. I think maybe it a pinched nerve from the bike riding. Is that correct?
It happen about a year ago he says but until now he mention it.

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replied April 2nd, 2010
Muscular and Nerve Disorders Answer A11062
Thank you for your question on

Any uncontrollable shaking of any part of the body can be considered a convulsive movement affecting that part. As it happened after a strenuous activity, it could be related to it.

It is very essential to rule out underlying pathologies like diabetes (which can produce convulsions in hypoglycemia), electrolyte imbalances due to dehydration, epilepsy and any intracranial pathology like space occupying lesions, aneurysms and tumors.

I suggest you to have examination done by a physician and necessary investigations like blood count, electrolytes, blood sugar levels and CT/MRI. Thank you.

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