Whether you’re sociable, reserved, funny or forthright, everyone who knows you would likely list the same traits when describing your personality.  These characteristics are the combined product of your heredity and early life experience, and they are fixed by the time you reach adulthood.

People with personality disorders have traits that cause them to feel and behave in socially distressing ways, which often limit their ability to function in relationships and at work.  Depending on the disorder, their personalities are generally described in more-negative terms: dramatic, clingy, antisocial or obsessive.  As many as 15% of U.S. adults have one or more personality disorders.

Among the 10 conditions that are considered personality disorders, some have very little in common.  Doctors typically group the personality disorders that have shared characteristics into one of three clusters:

Cluster A ~ includes personality disorders marked by odd, eccentric behavior, including paranoid, schizoid and schizotypal personality disorders.

Cluster B ~ personality disorders are those defined by dramatic, emotional behavior, including histrionic, narcissistic, antisocial and borderline personality disorders.

Cluster C ~ personality disorders are characterized by anxious, fearful behavior and include obsessive-compulsive, avoidant and dependent personality disorders.

There’s no cure for these conditions, but therapy and medication can help.  The symptoms of some personality disorders also may improve with age.

~~~ For me, based on this information, it would be difficult to really pin-point my cluster.  Maybe my pdoc’s opinion and assessment are different as he has never shared this with me. 

Source for this information:

Thanks to a commenter who wished clearer info on clusters, I found this site offering much better info:



About these ads

5 thoughts on “PERSONALITY DISORDERS: Clusters A, B & C

  1. I am confused: I need to find out how Cluster A, B, and C are similar and how they are different. Do you think you could explain to me?
    By the way, I just became a follower, I love the quotes and pictures.


  2. Those cluster definitions aren’t clear or specific at all. Each personality disorder has it’s own traits that one must have for a prolonged period of time in order to be diagnosed, not all of them though, just some. I have BPD and I’ve met others with BPD, and even though we share some things in common, we’re very different in others.

    Your doctor should openly discuss his assessment with you, it’s your health and you’re in all your right to know what’s going on and if you’re receiving proper treatment for it.


    • I agree, the only reason I posted this is, a blogger e-mailed me and questioned if I knew anything about Personality Clusters, and realize there/should be much broader definitions that would ‘fit’ into these ‘clusters’. IMO, I would think there should possibly be a Cluster A (1.a.), (1.b), etc. I searched and the source I usually use is MayoClinic which provided these details, but I also searched other sites. They provided similar details; some even psych jargon (confusing) details.

      As for my pdoc, I’ve never really had a need at this point to discuss it with him, however, I will in the future. Thanks for your comment, you brought up a good point with the BPD.



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s