Baby Milestone Guides

What to expect at every stage, why each milestone matters, and how to support it — from birth through toddlerhood.

35 milestones

Social & Emotional

Social smile

Smiles in response to people or voices

1–3 months CDC
Social & Emotional

Calms down when rocked, talked to, or picked up

Shows ability to be soothed by caregiver

2–4 months CDC
Language & Communication

Makes cooing sounds (aah, ooh)

First vocal sounds beyond crying

2–4 months CDC
Motor

Holds head up when on tummy

Shows neck strength and control

2–4 months CDC
Social & Emotional

Looks at you, moves, or makes sounds to get your attention

Beginning intentional communication

3–5 months CDC
Motor

Rolls over (front to back and back to front)

First major movement milestone

4–6 months CDC
Motor

Sits with support

Sits when propped up

4–6 months
Motor

Reaches for toys with one hand

Shows hand-eye coordination

4–6 months CDC
Language & Communication

Babbles with consonants (ba-ba, ma-ma)

Combines consonants and vowels

4–7 months CDC
Motor

Moves things from one hand to the other

Hand-to-hand transfer

5–7 months CDC
Language & Communication

Responds to own name

Looks when name is called

6–9 months CDC
Motor

Sits without support

Can sit independently

6–9 months CDC
Cognitive

Looks for objects that are hidden

Understands objects exist even when hidden

6–9 months CDC
Social & Emotional

Shows stranger anxiety

Becomes clingy with familiar people, shy around strangers

6–12 months CDC
Motor

Crawls

Moves on hands and knees

7–10 months
Motor

Pulls to stand

Uses furniture to pull up to standing

8–12 months CDC
Motor

Picks up things with thumb and pointer finger (pincer grasp)

Fine motor precision milestone

8–12 months CDC
Motor

Bangs two things together

Bilateral coordination

7–11 months CDC
Social & Emotional

Waves bye-bye

Imitates social gestures

8–12 months CDC
Motor

Walks while holding onto furniture (cruising)

Walks sideways holding furniture

9–13 months
Self Care

Feeds themselves with fingers

Independent eating

9–13 months CDC
Motor

First steps (walking independently)

Takes first independent steps

9–18 months CDC
Language & Communication

Says first word besides mama/dada

First meaningful word

10–15 months CDC
Language & Communication

Points at things

Points to show interest or request

9–14 months CDC
Self Care

Drinks from a cup without a lid

Self-feeding milestone

12–18 months CDC
Language & Communication

Follows one-step directions without gestures

Understands simple instructions

12–18 months CDC
Motor

Walks without holding on to anyone

Walks confidently

14–20 months CDC
Language & Communication

Says at least three words besides mama/dada

Vocabulary expansion

14–20 months CDC
Motor

Stacks at least two small objects (like blocks)

Hand-eye coordination and planning

15–21 months CDC
Motor

Kicks a ball

Balance and coordination

18–26 months CDC
Motor

Runs

Advanced walking skill

18–28 months CDC
Language & Communication

Says two-word phrases

Combines words meaningfully

20–30 months CDC
Language & Communication

Uses sentences with 4+ words

Complex language development

28–36 months CDC
Self Care

Uses fork or spoon

Self-feeding with utensils

24–36 months CDC
Motor

Copies a circle when shown one

Fine motor and cognitive skill

30–42 months CDC