Head circumference is the maximum circumference of a circle around the head from the arch of the eyebrow to the occipital node and reflects the development of the brain and skull. Clinical measurement of head circumference is an important screening step in detecting abnormal cranial growth. It is particularly important in developmental flaccid disorders or suspected hydrocephalus.
The reference values for head circumference in three-month-old babies range from 36.7 to 44.6 cm for male babies and 36.0 to 43.4 cm for female babies. Therefore, a head circumference of 38cm is normal for a three-month-old baby.
After the birth of the baby should pay attention to all aspects of its growth and development, including height, weight, head circumference growth, regular physical examination at the Children’s Health Department, when abnormal growth and development is found, it should be timely to the hospital, after the professional physician to clarify the cause of the disease, for standardized treatment.