Delayed closure of the anterior fontanelle in children is common in the following situations

We all know that when a child learns to speak, the child's anterior fontanelle is basically closed. When the child is just born, the child's anterior fontanelle jumps violently, but when it jumps violently, sometimes a big pit will appear in the child's anterior fontanelle. At this time, the child may be a little frightened. We need to hold the child's anterior fontanelle. So what happens if the child's anterior fontanelle does not close at one and a half weeks old?

.1. Vitamin D deficiency rickets often causes abnormal calcium and phosphorus metabolism and changes in the whole body's bones. The changes in the head alone are very significant. Osteomalacia often occurs in the center of the occipital bone and parietal bone. When you press lightly with your fingers, the bone sinks slightly inward, and bounces back immediately after you let go. It feels like pressing a ping-pong ball, so it is called "ping-pong head". Symmetrical skull domes appear on the top of the forehead, making the head square, the fontanelle is too large or closed as late as 2-3 years old, and there is also delayed teething. (Your child has been taking calcium supplements. I don't know if you have done a trace element test. It is recommended to do one to see)

2. Hydrocephalus or ventricular hydrops. I don't know if your child's head circumference is too large. I suggest you do a brain CT scan to rule it out.

3. Cretinism, also known as cretinism, is caused by congenital hypothyroidism. Based on your description, your child is not considered to have this condition for the time being.

What we need to pay attention to is that when the child's anterior fontanelle has not completely closed, we should not often touch the child's anterior fontanelle with our hands, let alone use some hard objects to touch it. When washing the child's hair, we must be careful not to pick it with our hands when the child's anterior fontanelle is dirty.