Craniosynostosis is a birth defect in which the bones in a baby’s skull join together too early.

This happens before the baby’s brain is fully formed.

As the baby’s brain grows, the skull can become more misshapen.

The spaces between a typical baby’s skull bones are filled with flexible material and called sutures.

These sutures allow the skull to grow as the baby’s brain grows.

Around two years of age, a child’s skull bones begin to join together because the sutures become bone.

When this occurs, the suture is said to “close.” In a baby with craniosynostosis, one or more of the sutures closes too early.

This can limit or slow the growth of the baby’s brain.

Repair usually involves a Craniofacial Surgeon and Neurosurgeon that work together.