A combination of personal history and biology appears to play a role in most personality disorders. Genetics play a significant — but not necessarily singular — role in the development of schizotypal, schizoid and paranoid personality disorders, which all are more common in families with a history of schizophrenia. Heredity also contributes to the development of obsessive-compulsive personality disorder.

A family history of antisocial personality disorder increases your risk of developing the condition, but childhood trauma also has considerable influence. Children with an alcoholic parent, or who have an abusive or chaotic home life, are at increased risk of developing antisocial personality disorder.

Sexual abuse is a common risk factor for borderline personality disorder. People with borderline personality disorder who report sexual abuse at a younger age — younger than 13 years old — are also more likely to have post-traumatic stress disorder. Heredity and childhood head injuries also may influence the development of this disorder.

The causes of narcissistic, histrionic, avoidant and dependent personality disorders have been minimally studied and aren’t yet well understood.

Risk factors

More women than men develop borderline personality disorder. But men are much more likely than women to have antisocial personality disorder and obsessive-compulsive personality disorder.

Other risk factors for personality disorders include:

* A history of childhood verbal, physical or sexual abuse
* A family history of schizophrenia
* A family history of personality disorders
* A childhood head injury
* An unstable family life

Sources: Healthy Genius

No related content found.