Important Milestones: Your Baby By 6 Months

How your child plays, learns, speaks, acts, and moves offers important clues about your child’s development. Developmental milestones are things most children (75% or more) can do by a certain age. Check the milestones your child has reached by the end of 6 months by completing a checklist with CDC’s free Milestone Tracker mobile app, using the Digital Online Checklist, or by printing the checklist.

What most babies do by this age:

Social/Emotional Milestones

  • Knows familiar people
  • Likes to look at self in a mirror
  • Laughs

Language/Communication Milestones

  • Takes turns making sounds with you
  • Blows “raspberries” (sticks tongue out and blows)
  • Makes squealing noises

Cognitive Milestones (learning, thinking, problem-solving)

  • Puts things in her mouth to explore them
  • Reaches to grab a toy he wants
  • Closes lips to show she doesn’t want more food

Movement/Physical Development Milestones

  • Rolls from tummy to back
  • Pushes up with straight arms when on tummy
  • Leans on hands to support himself when sitting

Other important things to share with the doctor…

  • 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 he/she once had?
  • Does your baby have any special healthcare needs or was he/she born prematurely?

Concerned About Your Child’s Development? Act Early.

You know your child best. Don’t wait. If your child is not meeting one or more milestones, has lost skills he or she once had, or you have other concerns, act early. Talk with your child’s doctor, share your concerns, and ask about developmental screening.

If you or the doctor are still concerned:

  1. Ask for a referral to a specialist who can evaluate your child more; and
  2. Call your state or territory’s early intervention program to find out if your child can get services to help. Learn more and find the number at

Tips and Activities: What You Can Do for Your 6 month old

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.

  • Use “back and forth” play with your baby. When your baby smiles, you smile; when he makes sounds, you copy them. This helps him learn to be social.
  • “Read” to your baby every day by looking at colorful pictures in magazines or books and talk about them. Respond to her when she babbles and “reads” too. For example, if she makes sounds, say “Yes, that’s the doggy!”
  • Point out new things to your baby and name them. For example, when on a walk, point out cars, trees, and animals.

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“Learn the Signs. Act Early.” materials are not a substitute for standardized, validated developmental screening tools.

This information was originally published by the CDC.