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Doctor insights on: Newborn Head Circumference Chart

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What is normal head circumference for a 9mnth old?

What is normal head circumference for a 9mnth old?

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

Dr. James Dukelow
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Neonatal (Definition)

The term neonatal is generally used to describe events that occur with an infant within the first 30 days after birth.Some practitioners are looser with the definition & extend the ...Read more


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Is there a correlation between abnormally large head circumference and an increased chance of neonatal seizures?

Increased pressure: Head circumferences that increase rapidly (can be followed on the head circumference growth chart) can be associated with neonatal seizures if increased intracranial pressure is present. ...Read more

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Head circumference - what is too small?

Head circumference - what is too small?

Head circumference: There is a wide range of normal for head circumference, depending on age. Your doctor should be plotting this on a chart at well child visits. Look at both the actual size, and the change in size with time to see if your child's head circumference is normal. ...Read more

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What if my baby's head circumference is small?

What if my baby's head circumference is small?

Repete measurments: One measurment is never enough-- the progress is whats inportant have several messure a mont apart--also how is baby developing is it normal? ...Read more

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What is normal head circumference for a 9mnth old?

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

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I was wondering is a 24in. head circumference large?

I was wondering is a 24in. head circumference large?

Not necessarily: For an adult male it is at the larger end of the normal range.For the most part it is only a problem in finding well fitting head ware. It hasn't complicated my life. ...Read more

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My 4 months baby's head circumference is 46 cm, is it ok?

My 4 months baby's head circumference is 46 cm, is it ok?

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

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I m concerned for baby head growth. She is 18 days old.Born with 37 CM head circumference today 40 cm.is that normal.

I m concerned for baby head growth. She is 18 days old.Born with 37 CM head circumference today 40 cm.is that normal.

Large head: 40 cm at 18 days is large. IF there is no bulging of the fontanelle, the difference may be due to molding durign the delivery. Was this a large baby? Is there a family history of large heads. If there is any concern, speak to your pediatrician andi f necessary have an ultrasound done. ...Read more

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Our grandchildren's pediatricians always say what "percentile" they are in weight, length, head circumference. How important is this info?

Our grandchildren's pediatricians always say what "percentile" they are in weight, length, head circumference. How important is this info?

Screening test: Most adults get used to screening lab to "check out the system" as part of a visit.For kids, we have growth and physical development that provides us with the same kind of information.I can anticipate where on a growth chart a kid should be from the size of their parents. Then, as long as the kid stays within expected percentiles for growth and development, I have good evidence for good health. ...Read more

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