Average FOC for a term newborn

What is the average FOC for a term newborn?

Average FOC of a term newborn is 35 cm.

  • The average FOC (Fronto-Occipital Circumference) for a term newborn varies depending on several factors, including the population being considered and any specific growth patterns observed in that population. However, on average, the FOC of a term newborn typically falls within the range of 32 to 37 centimeters (cm).
  • It’s important to note that there can be individual variations in head size among newborns, and healthcare providers monitor the FOC as part of a comprehensive assessment of the infant’s growth and development. Deviations from the average FOC may prompt further evaluation to ensure normal brain development and rule out any underlying conditions.
  • During routine well-child visits, healthcare professionals measure the FOC along with other anthropometric measurements, such as weight, length, and head circumference. These measurements help track the newborn’s growth over time and ensure they are within expected ranges for their age and sex.
  • If you have specific concerns about your newborn’s head size or growth, it is recommended to consult with your healthcare provider. They can provide personalized guidance and address any questions or concerns you may have.

What is the rate of growth over the first year? 

Average FOC growth is 2 cm per month for the first 3 months, 1 cm per month for the next 3 months, and 0.5 cm per month for the last 6 months.

Adult head size averages approximately 57 cm.


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