Craniosynostosis types are based on where the sutures close:
- Sagittal craniosynostosis affects the suture on the top of the head. Babies with sagittal craniosynostosis often have a long, narrow head (scaphocephaly).
- Coronal craniosynostosis affects one of the coronal sutures, which run from both ears to the top of the head. Babies with this type may have a flat forehead and a broad head.
- Lambdoid craniosynostosis affects the suture along the back of the head. Babies with this type often have a flat back of the head (plagiocephaly).
- Metopic craniosynostosis affects the suture that runs from the top of the nose to the top of the forehead. Babies with this type may have a triangular head, with the narrow ridge at the midline of the forehead.