Question 1

what is the average head circumference for an adult? as a baby, i underwent a ct scan because my pediatrician thought i might have hydrocephalus, but it turned out i just had a larger than average head size?

Accepted Answer

: Average hear circumference for female is 21.5 inches, max size 22.6 inches.

Question 2

if a baby has a rather large head, would it be possible for their body grow for their head size?

Accepted Answer

Yes.: Weight varies with height.   But head size has nothing to do with height or weight.  So although it is possible that someone's body could grow to match their large head, there is no guarantee it will happen.   Further, the percentage of your body length that is your head is about 30% at birth, but only 10% as an adult, so babies tend to have bigger heads than adults.

Question 3

what is the ideal head size for a baby girl who is about 4 months old? my baby's head size is 39.

Accepted Answer

Within the normal rg: This is in the lower range of normal on american cdc growth charts & would be average for a 4mo  that is about 23.5 inches long. You can download a growth chart & follow the child's growth pattern from the cdc site.Go to www.Cdc.Gov/growthcharts.

Question 4

i feel a little bubble like ball under my babys skin on the back of his head, size of a pea, it moves when i touch it and he doesnt seem to be in pain with it. do you know what it could be?

Accepted Answer

:  A pea sized movable subcutaneous mass you described is likely an occipital node.  In case the mass gets bigger, seek a medical attention.

Question 5

what  is the normal head size of a 3 month old baby. does a small head mean less intelligent?

Accepted Answer

Head size: 36-38 cm is average head size for 3 month old baby.Small head does not mean less intelligence.

Question 6

what factors make a cranium smaller than avarage head size ? besides genetics i have a small head circumference

Accepted Answer

Intra-uterine viral: There are several intra-uterine infections causing small head size.These are TOXOPLASMOSIS,CMV,HERPES, and others.

Question 7

at sons year od checkup dr ordered an ultrasound of his brain for monday said his head size is in 95th percentile he appears very healthy was surprised to find out he's 18 lbs only because he loves to eat very active fun baby

Accepted Answer

Hello. : Hello. Doctor's check  babies head sizes (head circumference) and compare it on a chart to other children of that age. 95th percentile means that his head is larger than the "average" head size at that age.  I am glad that you have a healthy and active baby. Take care.

Question 8

does weight gain affect head size in newborn? baby boy was born 7lbs & 7 oz. he was 9lbs & 12oz at 1 month. his head circumference grew by 3.5cm from birth to 1 month old! is this worrying?

Accepted Answer

: It is important that the head circumference was appropriately measured and you may want to put it on the growth chart. The head and body would grow with aging however the proportion of the head to the body would shrink over time. The trend on the growth chart should help you and also discuss with your pediatrician. If the baby is well why worry?

Question 9

does human head size change with age?

Accepted Answer

Head size: Not much after maturity unless you get acromegaly.

Question 10

is head size bodily proportional to height?

Accepted Answer

Usually it is so..: Normally, head-size is proportional to height. In pediatric care, head circumference, length (height) and weight measurements are very important part of each well visit. Headsize and height will continue to grow proportionately until shortly after puberty. Once max growth in height is achieved, head size stops even if one continues to grow sideway (unfortuately too much in us). Good luck.

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Doctor answers about:

Average baby head size chart

A member asked:

What is the average head circumference for an adult? as a baby, i underwent a ct scan because my pediatrician thought i might have hydrocephalus, but it turned out i just had a larger than average head size?

A member asked:

If a baby has a rather large head, would it be possible for their body grow for their head size?

A member asked:

What is the ideal head size for a baby girl who is about 4 months old? my baby's head size is 39.

A member asked:

I feel a little bubble like ball under my babys skin on the back of his head, size of a pea, it moves when i touch it and he doesnt seem to be in pain with it. do you know what it could be?

A member asked:

What is the normal head size of a 3 month old baby. does a small head mean less intelligent?

A member asked:

What factors make a cranium smaller than avarage head size ? besides genetics i have a small head circumference

A member asked:

At sons year od checkup dr ordered an ultrasound of his brain for monday said his head size is in 95th percentile he appears very healthy was surprised to find out he's 18 lbs only because he loves to eat very active fun baby

A member asked:

Does weight gain affect head size in newborn? baby boy was born 7lbs & 7 oz. he was 9lbs & 12oz at 1 month. his head circumference grew by 3.5cm from birth to 1 month old! is this worrying?

A member asked:

Does human head size change with age?

A member asked:

Is head size bodily proportional to height?

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