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Your Baby: A Developmental Checklist: 2 To 4 Months

Remember that all babies are individuals and develop at their own pace. Premature infants, especially, reach many milestones later than their same-age peers. This checklist should be used only to get a general sense for where your baby is or where he is heading. If you have any concerns about your child's development, consult with your physician.

Physical Development

  • Pushes up head and upper back while on stomach, supporting on elbows.
  • May propel with arm power on stomach to move a few inches.
  • Reaches for objects.
  • Selects items to hold, may transfer from hand to hand if desired.
  • May roll from stomach to back.
  • Held in sitting position, may keep head steady.
  • Bears weight on and even bounces on legs when held to standing.
  • Moro reflex/startle reflex may still be present
  • Grasp reflex fades.

Intellectual Development

  • May be startled and overwhelmed by new feats like rolling over.
  • Learns to satisfy self by sucking hands.
  • Sees variety of colours.
  • Begins to understand cause and effect.
  • Begins to develop short-term memory.
  • Becomes aware of differences in depth and distance.
  • Prefers human faces to non-face objects.
  • Delights in own hands and feet.
  • May sleep a seven- to nine-hour stretch at night.
  • Attentive during day up to 15 minutes at a time.

Social And Emotional Development

  • Uses smiling skills to communicate with caregivers.
  • Laughs, squeals, gurgles, and whimpers in response to others' actions.
  • Can be calmed by soothing voice, holding, or seeing the face of parent or familiar caregiver.
  • Distinguishes parents from other caregivers, especially the mother; tries to get her attention.

Language Development

  • May make vowel-consonant sound such as ah-goo.