What is normal baby head circumference?

Your baby’s head will grow at its fastest rate during the first 4 months after birth than at any other time. This increase is due to rapid brain growth. The average head circumference at birth is about 13.5 in. (34.5 cm).

Is 32 cm head circumference at birth?

Measurement of the head circumference is a routine yet critical part of newborn, infant, and toddler health supervision care. Abnormal head growth may indicate a medical or developmental problem and often leads practitioners to further evaluation. Normal head circumferences in term infants range from 32 to 38 cm.

What is the normal percentile for head circumference?

Data Table of Infant Head Circumference-for-age Charts

Age (in months) 3rd Percentile Head Circumference (in centimeters) 50th Percentile Head Circumference (in centimeters)
31.48762 35.81367
0.5 33.25006 37.19361
1.5 35.78126 39.20743
2.5 37.5588 40.65233

What is abnormal head circumference?

Macrocephaly refers to an overly large head. It’s often a symptom of complications or conditions in the brain. There’s a standard used to define macrocephaly: The circumference of a person’s head is more than two standard deviations above average for their age. Or, their head is larger than the 98th percentile.

What does baby head size indicate?

Preliminary studies have shown that 1-year-old babies with bigger heads score higher on IQ tests later in life. And bigger heads do tend to hold bigger brains.

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Is baby head size important?

Another measure of infant growth is head circumference, or the size of your baby’s head. It’s important because it can indicate how well their brain is growing. If your baby’s brain isn’t growing properly, they may have a condition known as microcephaly.

Can babies have small heads normal?

Microcephaly is a condition where a baby’s head is much smaller than normal. It is most often present at birth (congenital). Most children with microcephaly also have a small brain and intellectual disability. Some children with small heads have normal intelligence.

What happens if a baby’s head circumference is small?

Chances are your doctor will detect microcephaly at the baby’s birth or at a regular well-baby checkup. However, if you think your baby’s head is smaller than normal or isn’t growing as it should, talk to your doctor.

What if head circumference is large?

Children with macrocephaly have a head circumference (the measurement around the widest part of the head) that is greater than the 98th percentile. Sometimes a large head means that there is a problem in the brain which might require surgery.