What to know
- Learn about the developmental milestones that most children do by 18 months of age.
- See important information to share with your doctor.
- Find tips and activities you can do for your 18 month old.

Important Milestones: Your Child By Eighteen 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 18 months by completing a checklist with CDC's free Milestone Tracker mobile app, for and devices, using the Digital Online Checklist, or by printing the checklist below.
"Learn the Signs. Act Early." materials are not a substitute for standardized, validated developmental screening tools.
What most children do by this age:
Click the links below to view a photo or video of each milestone.
Social/Emotional Milestones
- Moves away from you, but looks to make sure you are close by
- Points to show you something interesting
- Puts hands out for you to wash them
- Looks at a few pages in a book with you
- Helps you dress him by pushing arm through sleeve or lifting up foot
Language/Communication Milestones
- Tries to say three or more words besides “mama” or “dada”
- Follows one-step directions without any gestures, like giving you the toy when you say, “Give it to me.”
Cognitive Milestones (learning, thinking, problem-solving)
- Copies you doing chores, like sweeping with a broom
- Plays with toys in a simple way, like pushing a toy car
Movement/Physical Development Milestones
Other important things to share with the doctor:
- What are some things you and your child do together?
- What are some things your child likes to do?
- Is there anything your child does or does not do that concerns you?
- Has your child lost any skills he/she once had?
- Does your child have any special healthcare needs or was he/she born prematurely?
Tips and Activities
What You Can Do for Your 18 month old

As your child'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 child's doctor and teachers if you have questions or for more ideas on how to help your child's development.
- Use positive words and give more attention to behaviors you want to see ("wanted behaviors"). For example, "Look how nicely you put the toy away." Give less attention to those you don't want to see.
- Encourage "pretend" play. Give your child a spoon so she can pretend to feed her stuffed animal. Take turns pretending.
- Help your child learn about others' feelings and about positive ways to react. For example, when he sees a child who is sad, say "He looks sad. Let's bring him a teddy."
- Special acknowledgments to the subject matter experts and others who contributed to the review of data and selection of developmental milestones, especially Paul H. Lipkin, MD, Michelle M. Macias, MD, Julie F. Pajek, PhD, Judith S. Shaw, EdD, MPH, RN, Karnesha Slaughter, MPH, Jane K. Squires, PhD, Toni M. Whitaker, MD, Lisa D. Wiggins, PhD, and Jennifer M. Zubler, MD.
- Sincere gratitude to Natalia Benza, MD and José O. Rodríguez, MD, MBA for their thoughtful review of the Spanish-language translation of these milestones.