Fontanelle Closures

by Cathy Parkes January 18, 2021 Updated: December 29, 2021

A child's posterior fontanelle closes between 6-8 weeks. The anterior fontanelle closes between 12-18 months. Hint: A baby starts on its back first then her front later
A child's posterior fontanelle closes between 6-8 weeks. The anterior fontanelle closes between 12-18 months.

Just as baby is on her back first then her front later, posterior (back) fontanelle closes first then anterior (front) closes later.


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