The fontanelle is the place where the baby’s skull is formed at birth without closing. There is one in the front and one in the center of the back half of the head, which are the fontanelle and the fontanelle. The latter usually closes after birth or until about 2 months of age, while the former does not close until about 1.5 years of age. In general, the closure of fontanel can be judged by touching the head. If you touch your baby along the midline of the top of the head, you will find that there is no bony skull part in the front and back of the baby’s skull, and the front part is called the fontanelle, which is diamond-shaped and slightly sunken and soft compared to other parts. After the baby is born 6 months, if the fontanelle is touched as the skull seam gradually ossifies and the area becomes smaller, it indicates that the fontanelle is gradually closing, and eventually only the bony skull can be touched, and the soft part cannot be touched, indicating that the fontanelle has closed. Second, the closing of the fontanelle judgment method The fontanelle is located at the back of the baby’s head, the intersection of the bone gap between the occipital bone and the two parietal bones, the size is small, and sometimes can not even touch. The posterior fontanelle is close to closing when the baby is born, or can only accommodate the fingertips, and completely closes about 2 months after birth, which is in line with its time window that suggests the closure of fontanelle. Care for babies before the closure of fontanel 1. Wash the baby’s hair gently, do not scratch the hallux with your fingers, only rub gently; 2. Use neutral shampoo or baby shampoo with little irritation to wash the head, do not use strong alkaline shampoo to wash; 3.