Baby’s Development Milestones

Posted: Jan. 1, 2004

The information below shows the ages by which most young children develop certain abilities. It is normal for a child to do some of these things later than the ages noted here. If your child fails to do many of these at the ages given, or you have questions about his or her development, talk with your child's health care provider.

2 Months

Smiles, coos.
Watches a person, follows with eyes.

4 Months

Laughs out loud.
Lifts head and chest when on stomach, grasps objects.

6 Months

Babbles, turns to sound.
Rolls over, supports head well when sitting.

9 Months

Responds to name, plays peek-a-boo.
Sits alone, crawls, pulls self up to standing.

1 Year

Waves bye-bye, says mama or dada.
Walks when holding on, picks up objects with thumb and first finger.

18 Months

Says three words other than mama or dada, scribbles.
Walks alone, feeds self using spoon.

2 Years

Puts two words together, refers to self by name.
Runs well, walks up stairs by self.

Source: Agency for Healthcare Research and Quality (AHRQ)

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