What is the correct method for measuring an infant's head circumference?

The proper method for measuring an infant's head circumference involves measuring around the largest part of the head. This measurement is taken above the eyebrows and ears, ensuring that the tape measure encompasses the most prominent part of the forehead and the back of the head. Accurately measuring the largest part is important for monitoring the growth and development of the infant’s brain and skull, as head circumference can indicate various health issues related to growth patterns.

Other methods mentioned, such as measuring around the forehead or from ear to ear, do not provide a complete assessment of the head's size. Measuring around the chin is not relevant for head circumference measurements, as it does not reflect the overall size of the head but rather a different facial dimension. Therefore, measuring around the largest part of the head is the most reliable and consistent approach for assessing head circumference in infants.