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3 months milestones

by william samuels

by 3 months, most babies are starting to smile socially, lift their head during tummy time, and track objects with their eyes. every baby develops at their own pace — these are general guides, not checklists.

physical milestones

lifts head and chest when lying on tummy

opens and shuts hands

pushes down on legs when feet are on a firm surface

brings hands to mouth

swipes at dangling objects

cognitive milestones

watches faces with interest

follows moving objects with eyes

recognises familiar people and objects at a distance

starts using hands and eyes together

social & emotional milestones

begins to develop a social smile

enjoys playing with other people

may cry when playing stops

imitates some movements and facial expressions

language & communication

makes cooing and gurgling sounds

begins to babble and imitate some sounds

turns head towards the direction of sounds

cries differently for different needs

red flags to watch for

talk to your GP or child health nurse if your child:

  • doesn't seem to respond to loud sounds
  • doesn't follow moving objects with eyes
  • doesn't smile at people
  • doesn't bring hands to mouth
  • can't support head when pushing up on tummy

tips for this age

  • plenty of tummy time — start with short sessions and build up
  • talk, sing, and read to your baby regularly
  • hold colourful toys within reach for them to swipe at
  • respond to coos and babbles to encourage communication

view all age milestones

from 3 months to 5 years

this information is based on general developmental guidelines from the CDC and Raising Children Network. every child develops differently — these are guides, not checklists. if you have concerns, consult your GP or child health professional.