Paranoid Personality Disorder

By: Jessica Fugate


Paranoid Personality Disorder (PPD), is a mental condition in which a person has a long-term patter of distrust and a high suspicion of others. Symptoms include distrust, doubt in commitment, hostility, difficulty relaxing, and hypersensitivity.

What's the Cause?

As of right now, the cause is unknown. But, some believe that it can come from a genetic link because, PPD is common with people who have close relationships or ties with people who have been diagnosed with Schizophrenia.

How is it Diagnosed?

There are two different ways the PPD can be diagnosed and that either physically or psychologically. If it's diagnosed physically then a doctor will do a complete search of family history and if anything pops up, then he performs various diagnostic tests. If diagnosed psychologically, a psychiatrist interviews and evaluates the patient.

How is it Treated?

The most common treatment for PPD, is psychotherapy. The patient focuses on increasing general coping skills and improving social interactions, communication, and self-esteem. In some of the more extreme cases medicine like anti-depressants and anti-anxiety are prescribed.

Prognosis and Prevalence

PPD is a chronic disorder that usually lasts for life, however with time the disorder can gradually get better. Only a small fraction of the world is effected by PPD, only about 0.5%-2.5% of the worlds population is known to have it. However, many people who have PPD don't bring it to anyone's attention due to the fact that they don't trust them.
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Interesting Stories

Richard Nixon, the United Stated thirty-seventh president, had PPD. That's a big reason why there were always reports that Nixon was paranoid and why he recorded almost everything, which led to trouble down the road when the Watergate scandal broke out. He also did thorough investigation on basically normal people like, John Lennon.

Ongoing Research

As of today, very little is known about PPD and it's hard to research because such a small number of people are known to have it. Right now, researchers main goal with PPD is to find out how someone gets it and to find a cure for it.


There are many controversial debates on how accurate the actual diagnosis is. Many say that it isn't specific enough to make the judgement of whether someone has the disorder or not. To be diagnosed there is a test and you have to get four or more out of eight to be diagnosed.