Free · Birth to 5 · A few minutes

Milestone Navigator

Worried about something specific: talking, walking, hearing, play? Pick the worry, answer a few plain questions, and get a clear, research-grounded next step, whether that's genuine reassurance or exactly what to say when you call.

Start with your worry How it works

This tool offers educational information, not medical advice, diagnosis, or screening. It cannot see your child; it can only organize what you report. Decisions about your child's health belong with you and your child's clinician. If your child is in immediate danger or distress, call your local emergency number.

How this works

Every path through this tool is checked against a set of published red lines, like not walking by 18 months (AAP motor-delay guidance) or caregiver concern about hearing at any age (Joint Committee on Infant Hearing). An automated check runs on every update to this site and enumerates every possible path: if any answer pattern that crosses a research line would land on a softer result than the research supports, the update fails and cannot ship. The tool can be more careful than the literature; it is never allowed to be less.

Loss of skills a child once had is treated as the most important observation at any age, in every category. And hearing is deliberately different from everything else here: your concern alone is enough for a hearing test, with no watch-and-wait step in between.