Childcare: fontanel, vitamin D deficiency

Childcare: fontanel, vitamin D deficiency

Growing up of fontanels

The soft spots on a newborn's head called fontanels require observation. The pediatrician checks the rate of their overgrowth every time you visit the baby.

The fontanelles are the soft joints of the bones of the newborn's skull. There are several of them, lecz najważniejsze to fontanel anterior and posterior. They play an important role during birth, thanks to them, the baby's head is able to squeeze through the birth canal.

Which is worrying

Parents are sometimes afraid, that the baby's soft head may be unintentionally damaged during nursing procedures. Wrong. The fontanelles are strong and there is no fear, that they will be damaged when washing the head or brushing.

Nie powinno niepokoić pulsating or raised fontanel przednie – located almost on top of the head – when a child cries or screams. Z kolei the bulging of the fontanelle during fever may be a sign of meningitis. At a toddler, who suffers from diarrhea, collapsed fontanel może świadczyć o dehydration of the body. These situations require immediate medical consultation.


The fontanelles are examined regularly at each control visit of the infant to the pediatrician. During these tests, the doctor always assesses the size and tension of the fontanelles, and records the results in the toddler's health book.

Growing up of fontanels

The fontanelles do not overgrow in all children equally. Faster, because more or less to 4. month, the posterior fontanel is overgrown. In a newborn baby, it has the shape of a triangle with more or less sides 1 cm. Anterior fontanel, which after the baby is born has the shape of a diamond on the side more or less 2-3 cm, usually overgrows to 18. month of life, sometimes a little longer.

The fontanel grows too quickly może świadczyć o patologii. However, the rate of fontanel overgrowth should not be analyzed without simultaneously analyzing the increase in head circumference. Therefore, at each control visit, the toddler's head circumference is also measured, and the practitioner compares the result with the graphs on the percentile grids. When your baby's head grows properly, the quickly overgrowing fontanel should not be alarming.

If the fontanel grows too slowly, your pediatrician may decide to increase your daily dose of vitamin D, but before that, he should order additional tests, assessing the state of calcium and phosphate metabolism in the body. The size of the fontanel itself is not an indication for a vitamin D dose adjustment. Delayed fontanel growth can be a symptom of a variety of health problems, testify to vitamin D deficiency, be a symptom of rickets or hydrocephalus.