Physical Growth & Development Guidelines:
2 - 4 months
These data of boys and girls height/weight are different from
Singapore rule. This is based on the Guidelines and Instruction for Maternal and Child Health in Japan.
Infants 2 - 3 months:
Infants start to find their voice
Infants start to follow moving objects with their eyes. They will be able to turn their heads towards noises and voices.
Head control will be better and babies will try to lift their heads when placed on their tummies. They will start make "ah-ah" and "oh-oh" noises.
Infants will start to put their hands to their mouth and some may start sucking their fingers.
Important Tip for Mummies:
Infants will be much better at feeding by this time, and a feeding rhythm may be created.
For Boys
For Girls
Height: 54.7 - 65.3 cm
Weight: 4.4 - 7.9 kg
Height: 53.2 - 63.8 cm
Weight: 4.0 - 7.4 kg
Infants 3 - 4 months:
Better head support and control
Infants usually weight approximately two times more than their birth weight. They will start to have control of their head, making it more steady when held.
Infants will be able to life their head up high when put on their tummies.
Facial expressions become more colourful and they will start to laugh when played with.
Infants will be able to stay awake longer during the day and they start to distinguish day from night.
Important Tip for Mummies:
Holding your baby will be easier now that there is more head control. Enjoy going out, such as taking walks.
For Boys
For Girls
Height: 57.6 - 67.8 cm
Weight: 5.1 - 8.6 kg
Height: 55.8 - 66.2 cm
Weight: 4.6 - 8.1 kg