Personality Disorders

(Click the blue hyperlinks below to learn more about each disorder.)

There are 10 types of personality disorders that can be grouped into three different categories called clusters.[1] These include:

CLUSTER A - These personality disorders involve unusual thoughts and behaviors.

  • Paranoid Personality Disorder (PPD) - A person has paranoia (an extreme fear and distrust of others). They may think that someone is trying to harm them.

  • Schizoid Personality Disorder - A person prefers to be alone and is not interested in having relationships with others; this is different than introversion.

  • Schizotypal Personality Disorder - A person has unusual thoughts and ways of behaving and speaking. They are uncomfortable having close relationships with others.

CLUSTER B - These personality disorders involve dramatic and emotional thoughts and behaviors that can keep changing. Antisocial personality disorder, in which a person has a long-term pattern of manipulating, exploiting, or violating the rights of others.

CLUSTER C - These personality disorders involve anxious and fearful thoughts and behaviors.

Contributed by: Jennifer (Ghahari) Smith, Ph.D.

REFERENCE

1 NIH: National Institute of Health. (n.d.) Personality Disorders. (accessed 12-13-2023) https://medlineplus.gov/personalitydisorders.html