People with paranoid personality disorder are generally characterized by having a long-standing pattern of pervasive distrust and suspiciousness of others. A person with paranoid personality disorder will nearly always believe that other people’s motives are suspect or even malevolent.
Individuals with this disorder assume that other people will exploit, harm, or deceive them, even if no evidence exists to support this expectation. While it is fairly normal for everyone to have some degree of paranoia about certain situations in their lives (such as worry about an impending set of layoffs at work), people with paranoid personality disorder take this to an extreme — it pervades virtually every professional and personal relationship they have.
Although they may appear to be objective, rational, and unemotional, they more often display a labile range of affect, with hostile, stubborn, and sarcastic expressions predominating. Their combative and suspicious nature may elicit a hostile response in others, which then serves to confirm their original expectations.
A personality disorder is an enduring pattern of inner experience and behavior that deviates from the norm of the individual’s culture. The pattern is seen in two or more of the following areas: cognition; affect; interpersonal functioning; or impulse control. The enduring pattern is inflexible and pervasive across a broad range of personal and social situations. It typically leads to significant distress or impairment in social, work or other areas of functioning. The pattern is stable and of long duration, and its onset can be traced back to early adulthood or adolescence.
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