Pervasive Developmental Disorder Defined
Pervasive developmental disorder or PDD refers to groups of five main disorders of development delays that inhibit communication and socialization functions in human beings. Some examples of these include Rett syndrome, autism, childhood disintegrative disorder, pervasive developmental disorder not otherwise s specified or PDD-NOS, and Asperger syndrome. Sadly, though parents notice symptoms from infancy to just before age three, there are correlations between suicides, other medical issues, crime and poverty in patients suffering these disorders. Currently there are no known cures or in some cases rhyme or reason for their development. In fact, it is believed that some may be genetic in nature, though others are still yet completely unexplainable.