What is the head circumference of a four month old baby?

When the baby is 4 months old, mothers should not only feed the baby with breast milk, but also add some complementary foods. At this time, adding appropriate complementary foods to the baby will be of great help to the baby's physical growth in all aspects, and will not cause the baby to suffer from nutritional deficiencies. The baby's body grows faster at 4 months old. So what is the head circumference of a baby at four months old? The following is a detailed introduction.

Four-month-old baby's head circumference:

Boys: about 39.6-44.4 cm, average 42.0 cm

Girls: about 38.5-43.3 cm, average 40.9 cm

How to measure baby's head circumference

How should the baby's head circumference be measured most accurately? We have said that the baby's head circumference refers to the maximum length of the head, so we should use a soft ruler to measure the baby's head circumference. Use a soft tape measure to wrap around the baby's head, passing through the middle of the eyebrows in the front and the most prominent point of the back of the head, which is the highest point of the occipital protuberance. The data obtained by going around the baby's head is the baby's head circumference. Generally, babies have less hair, so the thickness of the hair can be ignored. However, if the baby is older and has more hair, the hair should be parted for more accurate measurement.

What to do if your baby's head circumference is too small

A baby's small head circumference generally means that the baby's head circumference is smaller than the median head circumference of babies of the same age minus two standard deviations, or even below the third percentile. At this time, the baby's intellectual development may be restricted, and the baby will also lag behind in physical strength. Some may even have convulsions. These babies generally have small and pointed heads and narrow foreheads.

If it is determined after measurement that the baby's head circumference is small, you should go to the hospital in time to rule out some diseases. In addition, if conditions permit, you can do an intelligence test to see if the baby has intellectual defects. A comprehensive examination at the hospital can help your baby.

After understanding the head circumference of a four-month-old baby, if any abnormal changes occur during the baby's growth, they must be alleviated in time, otherwise the baby's problems will worsen, and there will be more damage to the baby's body in all aspects. In addition, during the baby's growth, parents must pay attention to the baby's diet and choose foods with high nutritional value for the baby.