Babies develop at their own pace, so it's impossible to tell exactly when your child will learn a given skill. The developmental milestones listed below will give you a general idea of the changes you can expect, but don't be alarmed if your own baby's development takes a slightly different course.

 

Social and Emotional

  • Enjoys social play
  • Interested in mirror images
  • Responds to other people's expressions of emotion and appears joyful often

Cognitive

  • Finds partially hidden object
  • Explores with hands and mouth
  • Struggles to get objects that are out of reach

Language

  • Responds to own name
  • Begins to respond to "no"
  • Can tell emotions by tone of voice
  • Responds to sound by making sounds
  • Uses voice to express joy and displeasure
  • Babbles chains of sounds

    Movement
  • Rolls both ways (front to back, back to front)
  • Sits with, and then without, support on hands
  • Supports whole weight on legs
  • Reaches with one hand
  • Transfers object from hand to hand
  • Uses hand to rake objects
  • Vision
  • Develops full color vision
  • Distance vision matures
  • Ability to track moving objects improves

Developmental Health Watch

  • Seems very stiff, with tight muscles
  • Seems very floppy, like a rag doll
  • Head still flops back when body is pulled to a sitting position
  • Reaches with one hand only
  • Refuses to cuddle
  • Shows no affection for the person who cares for him or her
  • Doesn't seem to enjoy being around people
  • One or both eyes consistently turn in or out
  • Persistent tearing, eye drainage, or sensitivity to light
  • Does not respond to sounds around him or her
  • Has difficulty getting objects to mouth
  • Does not turn head to locate sounds by 4 months
  • Does not roll over in either direction (front to back or back to front) by 5 months
  • Seems impossible to comfort at night after 5 months
  • Does not smile on his or her own by 5 months
  • Cannot sit with help by 6 months
  • Does not laugh or make squealing sounds by 6 months
  • Does not actively reach for objects by 6 to 7 months
  • Does not follow objects with both eyes at near (1 foot) and far (6 feet) ranges by 7 months
  • Does not bear weight on legs by 7 months
  • Does not try to attract attention through actions by 7 months
  • Does not babble by 8 months
  • Shows no interest in games of peek-a-boo by 8 months
  • Experiences a dramatic loss of skills he or she once had