Standard value
Boys in the second month: about 37.0~42.2 cm, with an average of 39.6 cm. Female students: 36.2~4 1.0 cm, with an average of 38.6 cm.
Intellectual development may be limited.
The baby's head circumference generally means that the baby's head circumference is less than the median head circumference of the same age baby minus two standard deviations, or even lower than the 300th percentile. At this time, the baby's intellectual development may be limited, physical strength will fall behind, and some will have convulsions. These babies generally have small, pointed heads and narrow foreheads.
Timely treatment
If it is determined that the baby's head circumference is small after measurement, it is necessary to go to the hospital in time to eliminate some diseases. In addition, you can do an intelligence test to see if your baby has mental defects. A comprehensive examination in the hospital can help the baby.