How Many Different Personality Disorders are There?

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How Many Different Personality Disorders are There?

Personality disorders are specific behavior patterns and inner experiences that differ from what’s typically expected of members of a person’s culture. These disorders involve inflexible and unusual:

  • Perceptions of self, others, and situations
  • Range and intensity of emotions
  • Interpersonal functioning
  • Impulse control

There are 10 distinct types of personality disorders, divided into three groups, or clusters. The clusters describe the general theme of the disorders within them. According to the DSM-5, cluster A personality disorders make people appear “odd or eccentric.” Cluster B includes disorders that cause people to seem “dramatic, emotional, or erratic,” and those with a cluster C disorder seem “anxious or fearful.”

The 10 personality disorders:

Cluster A

Cluster B

Cluster C

It’s important to note that despite some similarities in names, these personality disorders are different from mental illnesses. Obsessive-compulsive personality disorder (OCPD), for example, is not the same as obsessive-compulsive disorder (OCD).

Personality disorders can be hard to understand, even for those who live with them. Knowing what a personality disorder is, the types that exist, and the nature of the clusters that categorize them is a good start to increasing your understanding.


American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders, Fifth
edition (DSM-5)
. Arlington, VA.

Related Articles Dealing with Personality Disorders

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Mental Health Quote

"Too many of us are not living our dreams because we are living our fears."

Read more abuse quotes.


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APA Reference
Peterson, T. (2019, September 2). How Many Different Personality Disorders are There?, HealthyPlace. Retrieved on 2024, May 25 from

Last Updated: September 3, 2019

Medically reviewed by Harry Croft, MD

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