Craniosynostosis syndromes are a group of conditions where one or more of the sutures in a baby’s skull close prematurely. This early fusion can lead to abnormal head shapes and may affect brain development. The severity and specific features can vary widely among individuals. These syndromes can be associated with other physical abnormalities and genetic conditions. Common examples include Apert syndrome, Crouzon syndrome, and Pfeiffer syndrome. Treatment often involves surgery to correct the skull shape and allow for normal brain growth, along with ongoing monitoring for associated health issues.