Symptoms of increased ICP in infants include those for adults, as well as some additional signs unique to babies less than 12 months old. Because the bony plates that form the skull are softer in babies than in older children and adults, they may spread apart in an infant with increased ICP. This is called separated sutures of the skull. Increased ICP can also cause the fontanel (the soft spot on the top of a baby’s head) to bulge outward.