A member asked:

What does 90% percentile in infant head circumference mean?

A doctor has provided 1 answer

Relative study: His rating means that 10% of infants at this age have a larger head circumference (size) while 90% are smaller.If the size has increased from 25-50-75-90% over several months it would suggest growth was too rapid.If usually in that range, it just means the kid has a big head.It hasn't bothered me any, except for having trouble finding a helmet/hat that would fit..

Answered 12/30/2020

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Are infant car seat "head support" inserts safe to use?

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