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Developmental Milestones: Four Months

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Milestones matter! How your child plays, learns, speaks, acts, and moves offer important clues about his or her development. Look for these developmental milestones in your 4-month-old.

Physical:

  • Holds head steady, unsupported
  • Pushes down on legs when feet are on a hard surface
  • May be able to roll over from tummy to back
  • Can hold a toy and shake it and swing at dangling toys
  • Brings hands to mouths
  • When lying on stomach, pushes up to elbows

Mental:

  • Let’s you know if he is happy or sad
  • Responds to affection
  • Reaches for a toy with one hand
  • Uses hands and eyes together, such as seeing you and reaching for it
  • Follows moving things with eyes from side to side
  • Watches faces closely
  • Recognizes familiar people and things at a distance

Social:

  • Smiles spontaneously, especially at people
  • Likes to play with people and might cry when playing stops
  • Copies some movements and facial expressions, like smiling or frowning
  • Begins to babble
  • Babbles with expression and copies sounds he hears
  • Cries in different ways to show hunger, pain, or being tired

Additional Tips for Caretakers:

You can help your baby learn and grow. Talk, read, sing, and play together every day. Below are some activities to enjoy with your 4-month-old baby today.  Hold and talk to your baby; smile and be cheerful while you do.
  • Set steady routines for sleeping and feeding.
  • Pay close attention to what your baby likes and doesn’t like; you will know how best to meet his needs and what you can do to make your baby happy.
  • Copy your baby’s sounds.
  • Act excited and smile when your baby makes sounds.
  • Have quiet play times when you read or sing to your baby.
  • Give age-appropriate toys to play with, such as rattles or colorful pictures.
  • Play games such as peek-a-boo.
  • Talk, read, and sing to your baby.
  • Play peek-a-boo. Help your baby play peek-a-boo, too.
  • Provide safe opportunities for your baby to reach for toys and explore his surroundings.
  • Put toys near your baby so that she can reach for them or kick her feet.
  • Put toys or rattles in your baby’s hand and help him to hold them.
  • Hold your baby upright with feet on the floor and sing or talk to your baby as she “stands” with support.
This information was obtained from the CDC’s Developmental Milestones Checklist. To find the original version, please visit www.cdc.gov.
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