What the CDC checklists say
- By 12 months"Calls a parent "mama" or "dada" or another special name"
- By 15 months"Tries to say one or two words besides "mama" or "dada," like "ba" for ball or "da" for dog"
- By 18 months"Tries to say three or more words besides "mama" or "dada""
- By 2 years"Says at least two words together, like "More milk.""
- By 30 months"Says about 50 words"
CDC milestones show what most children (75% or more) can do by each age, so many children do these things sooner.
The CDC says you know your child best. 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 and ask about a developmental screening.
Related milestones
Frequently asked questions
When do babies start talking?
The CDC milestones: "mama" or "dada" by 12 months, one or two other words by 15 months, three or more words by 18 months, two words together by 2 years and about 50 words by 30 months.
When should I talk to a doctor?
The CDC says to act early if your baby is not meeting one or more milestones, has lost skills they once had, or you have other concerns. Talk with your child's doctor; you know your baby best.
Sources: CDC, "Learn the Signs. Act Early." milestone checklists. Checked October 17, 2026. Not medical advice. Our sources.