Pervasive Development Disorders Directory

Pervasive development disorders (PDDs) are a variety of developmental conditions that can cause problems with socializing, communicating, and using imagination. Some types of PDDs include autism, Rett syndrome, Asperger's syndrome, and more. There are therapies and classes that can help children and families affected by PDDs. Follow the links below to find WebMD's comprehensive coverage about how pervasive development disorders are caused, symptoms of these conditions, treatments that are available, and much more.

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