Developmental milestones record - 12 months

  • Definition
    • The typical 12-month-old child will demonstrate certain physical and mental skills. These skills are called developmental milestones.

  • Alternative Names
    • Normal childhood growth milestones - 12 months; Growth milestones for children - 12 months; Childhood growth milestones - 12 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.


      A 12-month-old child is expected to:

      • Be 3 times their birth weight
      • Grow to a height of 50% over birth length
      • Have a head circumference equal to that of their chest
      • Have 1 to 8 teeth
      • Stand without holding on to anything
      • Walk alone or when holding 1 hand
      • Sit down without help
      • Bang 2 blocks together
      • Turn through the pages of a book by flipping many pages at a time
      • Pick up a small object using the tip of their thumb and index finger
      • Sleep 8 to 10 hours a night and take 1 to 2 naps during the day


      The typical 12-month-old:

      • Begins pretend play (such as pretending to drink from a cup)
      • Follows a fast moving object
      • Responds to their name
      • Can say momma, papa, and at least 1 or 2 other words
      • Understands simple commands
      • Tries to imitate animal sounds
      • Connects names with objects
      • Understands that objects continue to exist, even when they can't be seen
      • Participates in getting dressed (raises arms)
      • Plays simple back and forth games (ball game)
      • Points to objects with the index finger
      • Waves bye
      • May develop attachment to a toy or object
      • Experiences separation anxiety and may cling to parents
      • May make brief journeys away from parents to explore in familiar settings


      You can help your 12-month-old develop skills through play:

      • Provide picture books.
      • Provide different stimuli, such as going to the mall or zoo.
      • Play ball.
      • Build vocabulary by reading and naming people and objects in the environment.
      • Teach hot and cold through play.
      • Provide large toys that can be pushed to encourage walking.
      • Sing songs.
      • Have a play date with a child of a similar age.
      • Avoid television and other screen time until age 2.
      • Try using a transitional object to help with separation anxiety.
  • 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.