This document discusses personality disorders and their characteristics. Personality disorders involve inflexible patterns of thinking, feeling and behaving that cause problems in important areas of life. Some key characteristics include seeing others as the cause of problems, unstable emotions, lack of empathy, seeking approval and special treatment from others to feel important. The document describes vicious cycles that can occur for some personality disorders like paranoid personality disorder. It also outlines some specific personality disorders like narcissistic personality disorder, histrionic personality disorder and borderline personality disorder. Finally, it provides guidelines for how to best respond and manage behaviors in individuals with personality disorders.