Baby Head Circumference

Doctor taking baby head circumference measurementThe circumference of the head in infants is often measured to detect an abnormally small or large skull, and to allow the medical treatment of any underlying cause (e.g. hydrocephalus, microcephaly) at an early stage. A tape measure is placed around the head from front to back and manoeuvred until the maximum possible reading has been obtained.

Charts have been prepared which enable head circumference to be compared against a normal standard for each age, and variations from the normal to be plotted.

The circumference of the head in infants is often measured to detect an abnormally small or large skull, and to allow the medical treatment of any underlying cause (eg. hydrocephalus, microcephaly) at an early stage. A tape measure is placed around the head from front to back and manoeuvred until the maximum possible reading has been obtained.

A graph plotting the average circumference of a baby's head

A graph showing the average baby head circumference as they age
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(Last modified: 13th Oct 2014)

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