Causes of AvPD are not clearly defined, but appear to be influenced by a combination of social, genetic and psychological factors. The disorder may be related to temperamental factors that are inherited. Specifically, various anxiety disorders in childhood and adolescence have been associated with a temperament characterized by behavioral inhibition, including features of being shy, fearful and withdrawn in new situations. These inherited characteristics may give an individual a genetic predisposition towards AvPD. Childhood emotional neglect and peer group rejection are both associated with an increased risk for the development of AvPD. Some researchers believe a combination of high-sensory-processing sensitivity coupled with adverse childhood experiences may heighten the risk of an individual developing AvPD.
Avoidant personality disorder
Schizoid personality disorder
Dependent personality disorder
Asperger syndrome
Histrionic personality disorder
Social anxiety disorder
Immature personality disorder
Schizotypal personality disorder  Schizotypal disorder  1