Autism Home > All About Pervasive Developmental Disorder

Pervasive developmental disorder (PDD) is a term that refers to disorders in which a person experiences delays in the development of socialization and communication skills. The typical age of onset is before a child turns three years old. However, some parents may notice symptoms as early as infancy.
PDD symptoms will vary from person to person, but may include things like:
  • Difficulty with changes in routine or familiar surroundings
  • Problems with using and understanding language
  • Difficulty relating to people, objects, and events.
Examples of pervasive developmental disorders include:
(Click Pervasive Developmental Disorder to learn all about this topic, such as the interventions that can address specific behavioral problems.)
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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