>>59064206Hydrocephalus is a condition in which cerebrospinal fluid (CSF) builds up within and/or around the brain, which can cause pressure to increase in the skull. Since infants' skulls are not fully fused together at the cranial sutures yet, they have soft spots on their skulls known as open fontanelles. This anatomic characteristic means that infants' skulls can visibly grow in size when cerebrospinal fluid accumulates.
