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The 囟(xìn) door, commonly known as the "sky lid," is a boneless, two-cornered space between the frontal bone and the frontal bone of the baby. It has only the rhombic space of the meninges, scalp, and subcutaneous tissue. The frontal fontanelle; the two top bones of the baby and the occipital bone. A boneless triangle formed between them is known as the back door. People often say that the trick is the front door.
Simply put, the trick is where the baby looks hopped on top of his head.
The baby's voice became larger and larger after several months of birth, and gradually became ossified and smaller after six months, and it was closed at one and a half years old.
When does the baby's fontanelle close?
Your baby's brain develops particularly quickly and grows rapidly. By the age of one, the brain's weight is more than double that at birth. However, the brain is constantly growing within the cranial cavity. If the volume of the cranial cavity is fixed, then the brain development is bound to be limited. At this time, the existence of the trick gave room for brain development.
The vast majority of infant prepatches should be closed 18-24 months after birth. Some babies will be closed later, as long as their length, weight, head circumference, and nervous system are normal, do not have to worry about.
How to care before closing the fontanelle
The following points should be noted before closing the fontanelle:
(1) Don't use pillows with too hard materials, such as sand pillows, otherwise it will easily cause baby's head deformation.
(2) Do not let your baby have a fixed sleeping position. If you want your baby's head shape to be perfect, you must always turn over for him and change your sleeping position.
(3) Pay attention to furniture at home and avoid sharp heads hurting the baby's head.
(4) If the baby inadvertently wipes the scalp, disinfect it immediately with an alcohol swab to prevent infection.
(5) Thick hats should be worn out in the winter to protect the fontanelles while reducing heat loss.
Tips for early or late closing
If the baby is not completely closed before the age of one and a half years old, it is often referred to as late closing of the fontanelle.
There are many reasons for the late closure of the fontanelles, such as hydrocephalus, rickets, and hypothyroidism (also known as staying), and may also be associated with mental retardation, growth retardation and other symptoms.
However, some babies are born with more tips, so the closing time will be slightly later. The frontal fontanelle closed 6 months before the baby was prematurely closed.
However, early onset of fontanel may not always have the problem of brain dysplasia. Individual infants only have fingertips at the age of 5 to 6 months, but head circumference continues to grow. This usually indicates that the fontanelle is not completely closed. There is no ossification, so it will not affect the intellectual development.
If your baby has early onset of fontanel closure or late onset of the fontanelle, it is best to go to the hospital to consult a doctor, although not necessarily a problem, but it can at least help us prevent it in advance.
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