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Warning signs

When to see the pediatrician — quick reference by age

Most variations in development are normal. But some signs warrant investigation. Early identification of any issue is what most improves outcomes.

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Última atualização: May 7, 2026

Most developmental variations are normal. But some signs warrant investigation. Early identification of any issue is what most improves outcomes.

At 2 months, see the pediatrician if

  • Doesn't respond to loud sounds
  • Doesn't track objects with her eyes
  • Doesn't smile at people
  • Can't lift her head when on her stomach

At 6 months, see the pediatrician if

  • Doesn't roll in either direction
  • Doesn't laugh or squeal with joy
  • Doesn't reach for objects
  • Doesn't respond to her own sounds (no "conversation")
  • Seems very stiff or very floppy

At 9 months, see the pediatrician if

  • Doesn't bear weight on her legs
  • Doesn't sit with support
  • Doesn't babble
  • Doesn't play exchange games (peek-a-boo)
  • Doesn't respond to her own name
  • Doesn't recognize familiar people

At 12 months, see the pediatrician if

  • Doesn't crawl
  • Doesn't stand with support
  • Doesn't search for hidden objects
  • Doesn't say any words
  • Doesn't use gestures like waving or pointing
  • Loses skills she previously had (regression is always a warning sign)

References

  1. American Academy of Pediatrics — Task Force on Sudden Infant Death Syndrome (2022). Sleep-Related Infant Deaths: Updated 2022 Recommendations for Reducing Infant Deaths in the Sleep Environment. Pediatrics, 150(1). doi:10.1542/peds.2022-057990

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