The newborn fontanelle is divided into two parts: the anterior fontanelle and the posterior fontanelle. Although it occupies only a small area on the body, changes in the fontanelle reflect the child's physical condition. When touching the head of a few-month-old baby, parents will feel a soft spot in the beak area, slightly pulsating, called a bulging fontanelle.

The anterior fontanel is an anatomical structure in infants and young children. If the anterior fontanel closes too early or too late, it is an abnormality in the child's development.

Although the baby's fontanelle only occupies a small area on the body, changes in the fontanelle reflect the baby's physical condition. When a baby is born, there are two fontanelles on the baby's head: the anterior fontanelle and the posterior fontanelle.