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Do adults have fontanelle in the skull? The difference between infant and adult cranial anatomy

By a baby's second birthday, the soft spots, or fontanelles, on their head have typically closed completely. The answer to "Do adults have fontanelle in the skull?" is no; the gaps between the bones that are present in infants have fully fused into solid bone by adulthood. This developmental process is a critical part of human growth, serving several important functions during infancy.