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What does head circumference of 39 cms indicate? - Online Doctor Chats

Date : 01-Dec-2014
User rating for this question
Very Good Posted in: Child Health
Answered by

General & Family Physician
Practicing since : 2002
Answered : 106 Questions
Doctor:
Please proceed with your query
User:Hello doctor..My son is 4 months old. I got his HC checked today and it is 39 cms. I am worried on his low HC
User:Is this microcephaly?
Doctor:There is no need to worry it is normal range.
User:His height is 62 cms and weight is 5.5 kg
User:Actually I was referring to WHO charts and it shows below 3rd percentile
Doctor:May I know his HC during his birth
User:HIS HC during birth was 32.59 . Last month it was 38 cm
Doctor:OK
Doctor:http://www.cdc.gov/growthcharts/data/set1clinical/cj41l019.pdf follow this link.
Doctor:here is a growth chart showing the normal HC
User:Ok...
Doctor:so any HC below the last curve is abnormal
Doctor:as your sons HC is 39 it comes in the normal range.
Doctor:There is nothing to worry
User:Ok ..but his percentile is below 3?
Doctor:See the curve please. In this the last curve on the right hand writes as 5. this is 5th percentile and the months are on the top. so take line after 3rd month and on the left is the HC required. you will see that it is around 38 to 44 cm.
User:Ok...I hope this doesn't affect his IQ?
Doctor:Do not worry. If you have any doubts, please see a pediatrician to know his growth and development
Doctor:After physical examination if the doctor says his growth is normal then you can allay your fears.
User:Ok...
Doctor:Do you have any more queries for me?
User:No
Doctor:Thanks for visiting me here. Bye for now.
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