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What are the characteristics of PDD-NOS?

No two individuals diagnosed with PDD-NOS are exactly alike. However, many individuals with PDD-NOS have some characteristics in common, such as: 

  • Deficits in social behavior
  • Uneven skill development (strengths in some areas and significant delays in others.)
  • Poorly developed speech and language comprehension and skills
  • Difficulty with changes in environment
  • Deficits in nonverbal communication
  • Uncommon responses to taste, sight, sound, smell and touch
  • Repetitive or ritualistic behaviors (i.e., opening and closing doors repeatedly or switching a light on and off)
  • Unusual likes and dislikes

Source: Center for Autism & Related Disabilities (CARD)

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.