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HomeAnswersPediatricsankle clonusWhen is ankle clonus abnormal in a child?

When should I be concerned about the ankle clonus of my 2-month-old son?


The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Medically reviewed by

Dr. Infanteena Marily F.

Published At July 11, 2021
Reviewed AtJuly 11, 2021

Patient's Query

Hello doctor,

My two-month-old son has ankle clonus. When he is asleep, and I push on his foot, it sometimes goes over ten beats. When it happens on its own, it is much shorter. Is this something that should be further evaluated?


Welcome to icliniq.com.

If you are getting more than ten beats of ankle clonus, please get the child evaluated physically by a pediatric neurologist. In such cases, based on physical examination, your child may require an MRI (magnetic resonance imaging) brain or USG (ultrasonography) of the brain.

Patient's Query

Thank you doctor,

If the baby was seen by a pediatric neurologist and did not have other physical concerns, can it be normal? Or should we get a second opinion?


Welcome back to icliniq.com.

If there are no other physical concerns like the stiffness of the limbs or rigid movements or convulsions or abnormal postures, etc., you need not worry.

It may have been possible that what you experienced with the child was a one-off phenomenon and does not happen regularly or continuously.

Patient's Query

Thank you doctor for the reply,

I have one last question because we have not been back for a follow-up with a pediatric neurologist. When he is placed on his feet, he pushes hard on the surface and supports most of his weight. Is this a normal movement or reaction for his age? And the clonus is reproducible, pretty quickly when he is asleep and sometimes when awake. It seems to be less than it was at one point.


Welcome back to icliniq.com.

Yes, this reaction is quite normal for his age. However, as I mentioned, other things like the stiffness of the limbs or rigid movements or convulsions, or abnormal postures need to be seen.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Faisal Abdul Karim Malim
Dr. Faisal Abdul Karim Malim


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