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Developmental milestones record - 4 months

  • Definition
    • Typical 4-month-old infants are expected to develop certain physical and mental skills. These skills are called milestones.

  • Alternative Names
    • Normal childhood growth milestones - 4 months; Childhood growth milestones - 4 months; Growth milestones for children - 4 months

  • Information
    • All children develop a little differently. If you are concerned about your child's development, talk to your child's health care provider.

      PHYSICAL AND MOTOR SKILLS

      The typical 4-month-old baby should:

      • Slow in weight gain to about 20 grams (almost two thirds of an ounce) per day
      • Weigh 2 times more than their birth weight
      • Have almost no head droop while in a sitting position
      • Be able to sit straight if propped up
      • Raise head 90 degrees when placed on stomach
      • Be able to roll from front to back
      • Hold and let go of an object
      • Play with a rattle when it's placed in their hands, but won't be able to pick it up if dropped
      • Be able to grasp a rattle with both hands
      • Be able to place objects in the mouth
      • Sleep 9 to 10 hours at night with 2 naps during the day (total of 14 to 16 hours per day)

      SENSORY AND COGNITIVE SKILLS

      A 4-month-old baby is expected to:

      • Have well-established close vision
      • Increase eye contact with parents and others
      • Have beginning hand-eye coordination
      • Be able to coo
      • Be able to laugh out loud
      • Anticipate feeding when able to see a bottle (if bottle-fed)
      • Begin to show memory
      • Demand attention by fussing
      • Recognize parent's voice or touch

      PLAY

      You can encourage development through play:

      • Place the baby in front of a mirror.
      • Provide bright-colored toys to hold.
      • Repeat sounds the infant makes.
      • Help the infant roll over.
      • Use an infant swing at the park if the baby has head control.
      • Play on the stomach (tummy time)
  • References
    • Feigelman S. The first year. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 8.