PD may be caused by a history of sexual abuse, parental neglect, and models of similar patterns by parents or guardians. It leads to many damaged relationships, difficulty holding down jobs, legal problems, and physical damage.
Less common, but still highly prevalent, personality disorders include:
Paranoid Personality Disorder: The person has an unsubstantiated belief that people are trying to sabotage him/her. A general sense of paranoia and suspicion of people and patterns.
Narcissistic Personality Disorder: The person has an inflated view of their own importance, usually at the expense of others.
Antisocial Personality Disorder: The person has a disregard for the feelings or wellbeing of others, often leading to damaging or criminal acts for personal gain.
Schizoid Personality Disorder: The person avoids social interaction and is uninterested and often oblivious to social cues and expectations.
Avoidant Personality Disorder: The person is excessively shy and harbors chronic feelings of inadequacy.
There are a number of other personality disorders, all of which negatively impact the suffering individual and those around them.