Patient's question:
My baby is 5 months old, with a head circumference of 44cm. The doctor said yesterday that the head is large. Experts, what is the standard head circumference for babies at this age? I thought it was said that a large head means intelligence?Doctor's answer:
The average head circumference of newborns is 34 cm. In the first six months, it increases by about 8 to 10 cm, and in the second half of the year, it increases by about 2 to 4 cm, reaching 48 cm by the age of 2. In the second year, it only increases by 2 cm. By the age of 5, it reaches 50 cm. By the age of 15, it approaches adult head circumference, approximately 54 to 58 cm.