Doctor insights on:
Head Circumference Chart Girls
Depends on gender ;: Velocity of growth. Has the head circumference grown normally along a single curve between 5th-95th%ile or increased too rapidly, e.g., jumping from 25th to 95th %ile (as may be seen in autism or hydrocephalus), or too slowly, e.g., dropping from 25th to 5th%ile, (indicating insufficient brain growth)?Girls' range at 9 months is 41.6-46.6 cm; avg. Is 44 cm. Boys, 43-47.4 cm; avg. Is 45.4 cm. ...Read more
Depends: This would be at the high end of normal for a male infant & usually paired with a length of 67 cm. You can download a growth chart from the cdc website & plot known measures to follow the child's pattern. www.cdc.gov/growthcharts if your kid is shorter or the head size is increasing faster than his length, it is unusual.If this is a girl the head is too big. ...Read more
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.. ...Read more
So far, just enough: To have close monitoring by her pediatrician. That is in the above 90% range but checking for other sign and progress is the correct action to take. I hope everything else seems okay so that this can be explained and/or addressed easily. Don't worry - just have a good full exam done. Best wishes to you and yours! ...Read moreSee 1 more doctor answer
Population norms: Growth features including head circumferancee, length and weight have been collected over the years and publishes as basic guidelines for following growth in kids.The average of all would be at 50% while some would be on the larger or smaller size. The 10% means only that of 100 kids born on the same day, her head is larger than 10% but smaller than 90%. ...Read more
Yes but ...: It is difficult to measure HC exactly but those numbers are well within the normal range. Just enjoy playing and talking to your new child!! ...Read more
I know a person's face can gain or lose weight, but is it possible for their head circumference also?
My daughter is five months old now and her head circumference is 42cm, does it imply she has a big head?
No, it's 50th-75th : %ile, depending on use of the who or cdc growth charts. More important than size ( within the normal range) is velocity of head growth, which reflects brain growth; i.e., is it ?ing rapidly, dropping off or following a growth curve? The aap recommends developmental surveillance with standardized screens at each check-up. See the aap healthy child app & firstsigns.Org for details. ...Read more