Patient's question:
Many people say that newborns have a breathing top. However, my 44-day-old baby doesn't have any soft in the front of the head. Instead, there's a small, soft about 3 centimeters in diameter at the back of the head. I'm not sure what this is. Is this the posterior fontanelle? Is it normal like this now? What can we do?Doctor's answer:
The phenomenon you mentioned is relatively normal. The breathing top you referred to is the fontanelle. Newborns have two fontanelles, the anterior fontanelle and the posterior fontanelle. The soft little depression at the back of your baby's head should be the posterior fontanelle. The normal posterior fontanelle usually closes automatically about a month after birth, while the anterior fontanelle typically closes around one year of age.However, your baby's brain top should not lack the anterior fontanelle. If you still cannot find it, it is recommended to take your child to the hospital for a check-up.