Your Baby at 12 Months: Complete Milestone Guide

7 min read
Updated: September 1, 2025
Medical-grade accuracy

Discover what your 12-month-old baby should be doing, how to support their development, and when to seek medical advice. Based on WHO and CDC standards.

What Most Babies Do by 12 Months

Social/Emotional Milestones

  • Plays games with you, like pat-a-cake

Language/Communication Milestones

  • Waves "bye-bye"
  • Calls a parent "mama" or "dada" or another special name
  • Understands "no" (pauses briefly or stops when you say it)

Cognitive Milestones

  • Puts something in a container, like a block in a cup
  • Looks for things he sees you hide, like a toy under a blanket

Movement/Physical Development

  • Pulls up to stand
  • Walks, holding on to furniture
  • Drinks from a cup without a lid, as you hold it
  • Picks things up between thumb and pointer finger, like small bits of food

Help Your Baby Learn and Grow

As your baby's first teacher, you can help his or her learning and brain development. Try these simple tips and activities in a safe way. Talk with your baby's doctor and teachers if you have questions or for more ideas on how to help your baby's development.

Teach your baby "wanted behaviors." Show her what to do and use positive words or give her hugs and kisses when she does it. For example, if she pulls your pet's tail, teach her how to pet gently and give her a hug when she does it.
Talk or sing to your baby about what you're doing. For example, "Mommy is washing your hands" or sing, "This is the way we wash our hands."
Build on what your baby tries to say. If he says "ta," say "Yes, a truck," or if he says "truck," say "Yes, that's a big, blue truck."
Redirect your baby quickly and consistently by giving her a toy or moving her if she is getting into things you don't want her to get into. Save "no" for behaviors that are dangerous. When you say "no," say it firmly. Do not spank, yell, or give her long explanations.
Give your baby safe places to explore. Baby-proof your home. For example, move sharp or breakable things out of reach. Lock away medicines, chemicals, and cleaning products.
Respond with words when your baby points. Babies point to ask for things. For example, say "You want the cup? Here is the cup. It's your cup." If he tries to say "cup," celebrate his attempt.
Point to interesting things you see, such as a truck, bus, or animals. This will help your baby pay attention to what others are "showing" him through pointing.
Limit screen time (TV, tablets, phones, etc.) to video calling with loved ones. Screen time is not recommended for children younger than 2 years of age. Babies learn by talking, playing, and interacting with others.
Give your baby water, breast milk, or plain milk. You don't need to give your baby juice, but if you do, give 4 ounces or less a day of 100% fruit juice. Do not give your baby other sugary beverages, such as fruit drinks, soda, sports drinks, or flavored milks.
Help your baby get used to foods with different tastes and textures. Foods can be smooth, mashed, or finely chopped. Your baby might not like every food on the first try. Give your baby a chance to try foods again and again.
Give your baby time to get to know a new caregiver. Bring a favorite toy, stuffed animal, or blanket to help comfort your baby.
Give your baby pots and pans or a small musical instrument like a drum or cymbals. Encourage your baby to make noise.

Developmental Screening Reminder

At 12 months, your baby is due for general developmental screening, as recommended for all children by the American Academy of Pediatrics. Ask the doctor about your baby's developmental screening.

Important Safety Warning

Never leave your baby unattended during feeding or play activities! At 12 months, babies are very mobile and curious. Always supervise them closely, especially around stairs, water, and small objects that could be choking hazards. Baby-proof your home thoroughly and keep dangerous items out of reach.

When to Be Concerned

You know your baby best. Don't wait.

If your baby is not meeting one or more milestones, has lost skills they once had, or you have other concerns, act early.

Talk with your baby's doctor:

  • Share your concerns
  • Ask about developmental screening
  • Get a referral to a specialist if needed

Contact Early Intervention Services:

If you or the doctor are still concerned, ask for a referral to a specialist who can evaluate your baby more.

Download Your 12-Month Milestone Checklist

Free Milestone Checklist

Download our comprehensive 12-month milestone checklist to track your baby's development. Take it with you to doctor visits and use it to monitor progress at home.

No email required • Instant download • Based on WHO & CDC standards

Other Important Things to Share with the Doctor

Questions to Discuss:

  • What are some things you and your baby do together?
  • What are some things your baby likes to do?
  • Is there anything your baby does or does not do that concerns you?
  • Has your baby lost any skills they once had?
  • Does your baby have any special healthcare needs or were they born prematurely?

Safety Reminders:

  • Be aware of choking risks and safe foods
  • Limit screen time to video calling only
  • Supervise during feeding and play activities
  • Ensure safe walking and movement areas

Last updated: September 1, 2025

Medical Disclaimer

This article is for educational purposes only and should not replace professional medical advice. Always consult healthcare providers for medical decisions about your child's health and development.

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