9-12 months Milestones

Here are the key development milestones for babies aged 9-12 months.

Last reviewed: May 2026

Cognitive

  • Puts things in container, takes out
  • Finds things hidden under 2-3 covers
  • Explores by banging/shaking/throwing
  • Looks at correct picture when named
  • Imitates new gestures and actions

Language/Communication

  • Waves 'bye-bye'
  • Calls parent 'mama' or 'dada' specifically
  • Understands and follows simple directions
  • Says single words like 'uh-oh'
  • Points to show what wants
  • Uses gestures to communicate needs

Movement/Physical

  • Gets to sitting without help
  • Pulls up to stand
  • Walks holding furniture (cruises)
  • May take steps alone
  • Crawls well on hands and knees
  • Uses pincer grasp to pick up small objects
  • Claps hands
  • Stands momentarily without support

Social/Emotional

  • Shy or clingy with strangers
  • Has wide range of facial expressions
  • Plays simple games like peek-a-boo
  • Hands things to others during play
  • Shows empathy when others are upset
  • Tests reactions of caregivers

What foods to introduce at 9-12 months

Your baby is hitting new milestones — their diet should grow with them. Explore age-appropriate foods, preparation guides, and safety ratings.

When to Talk to Your Pediatrician

Every child develops at their own pace, and a wide range of progress is considered typical. However, if you notice that your child is not meeting several milestones for their age group, or if you have any concerns about their development, it's always a good idea to bring it up with your pediatrician. Early conversations with your child's doctor can help you understand what to look for and when additional support may be helpful.

Milestone criteria based on CDC and AAP research — sourced from the CDC's Learn the Signs. Act Early. program, developed in collaboration with the American Academy of Pediatrics. For informational purposes only; not endorsed by or affiliated with the CDC or AAP.

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