Why do newborn babies have a small pit on the top of their heads?

After the baby is born, there is a concave part on the top of the head called the halogen. The fontanelle is caused by the fact that the baby's bones have not yet developed well and the bone seams have not been completely closed when the baby is born. When the body loses more water, the cerebrospinal fluid in the ventricles also decreases, the pressure decreases, and the fontanelle becomes significantly depressed.

If the baby has this symptom after vomiting and diarrhea, it means that the body has a moderate degree of dehydration, and it is necessary to replenish water in time. Extremely emaciated infants who are severely malnourished due to improper feeding can also have fontanelle depressions, and at this time, nutrition needs to be strengthened and fed reasonably. Very few babies have small heads because of an embryonic maternal infection or because of other diseases in which the brain is poorly developed.

The head circumference is small at birth, and the fontanelle closes early 5-6 months after birth, resulting in microcephaly; The head is small and pointed, the forehead is narrow, the bridge of the nose is collapsed, and the jaw is small and reced, accompanied by mental retardation. In children with cretinism caused by hypothyroidism, the fontanelle may not close.

This fontanelle, because the fetus is in order to conform to the intestines, at birth, this is not closed. This is also called the door of life, so parents usually do not touch it with their hands, and when the child reaches the age of one or a half, this fontanelle is closed.

The baby has a front chimney door and a back chimney door on his head. The anterior chimney is a diamond-shaped boneless space formed between the anterior skull and the left and right skulls, and the posterior chimney is a triangular boneless space behind the head. If you press it lightly with your hand, it will feel soft in both places.

The front chimney door usually takes 1 and a half years to close completely, while the back chimney door closes more quickly, usually only a month.

If your baby's chimney door hasn't closed after 6 and a half months, it may be a sign of calcium deficiency. Calcium should be supplemented in time.

The reason why a baby's head is easily deformed is mainly related to his bone characteristics and sleeping position. Bone in infancy is characterized by having more organic matter and less inorganic matter, so the texture is soft and elastic. In addition, babies grow and develop very quickly, especially their brains, and their heads weigh relatively heavily.

If parents do not pay attention to the baby's sleeping position, so that the baby's head always sleeps in one direction, for a long time, the baby's head is easy to deform. If your baby always sleeps on the left or right side, a bulge will form, and if your baby is used to lying on his back, a flat head will form. To prevent the appearance of bad head shapes such as flat heads, it is necessary to use pillows rationally and consciously let the baby sleep alternately in various positions.

For babies with flat heads or convex heads, it is necessary to take measures to correct them in time, the younger the better, preferably within 1 year of age.

The specific method is that in order to prevent the appearance of the baby's flat head, you can often help the baby to lie on his side, do not always let him lie on his back, and pay attention to prevent calcium and vitamin D deficiency. From the first month of life, calcium tablets and cod liver oil should be supplemented. Babies should get more sun to promote the absorption of calcium and vitamin D.

Suggestion: Newborns will have a cranial fontanelle because the skull is not fully developed, which is the soft part you said, where there is only a membrane separated from **, so don't try to touch it. It usually closes completely by the age of age.

It is also normal to have a hard depression in the back of the head, which is called an external occipital bulge, which is a bone.

After the baby is born, there will be a depression on the top of the head, the medical term is called fontanelle, fontanelle refers to the skull depression formed by the incompatibility of infants and skulls, mainly divided into anterior fontanelle and posterior fontanelle.

The anterior fontanelle is also an important window to reflect the baby's development and physical health, and the baby's normal fontanelle is flat. When there are abnormal changes in the fontanelle, it can reflect that the baby's physical condition has been disturbed by the disease, and it is necessary to seek medical attention in time, so as to achieve early detection and early **, so as not to delay the condition.

Or go to the hospital to see, the child's things must not be sloppy, and you can't prescribe the right medicine if you look at it online, or go to the hospital to ask the doctor, do a professional examination and reliable, if you need to buy maternal and infant products, you can buy it on the little red elephant, which is cost-effective.

This condition may be a posterior fontanelle.

1.If the closure is late, parents should pay attention to the child's diet and sleep.

2.Drink plenty of water, pay attention to hygiene and warmth, change diapers frequently, and have regular check-ups and vaccinations.

3.If your baby has other symptoms or discomfort, go to the hospital promptly.

<> this case, it is recommended that you go to the hospital for a check-up, it may be congenital, and it will grow slowly in the later stage, so you don't have to worry too much.