Personality disorder

This information looks at what is meant by the term personality disorder. It covers the kinds of difficulties that people with the diagnosis face and the help that can be available.It also looks at how you can support someone you know who has been given this diagnosis.

About our information

We publish information to help people understand more about mental health and mental illness, and the kind of care they are entitled to.

Our information isn't a substitute for personalised medical advice from a doctor or other qualified healthcare professional. We encourage you to speak to a medical professional if you need more information or support. Please read our disclaimer.

“Six years ago I didn't have the words to explain that I was distressed or put my feelings into words, and that's been something that my treatment has given me. That means now that yes, I still get distressed. I still experience those things, but now I have the words to communicate my distress.” Ellie

Many people would like personality disorder to be given a new name.

Many people with a personality disorder diagnosis have past experiences of trauma. Because of this, some people find it more acceptable to describe the difficulties they experience as complex post-traumatic stress disorder (complex PTSD). Complex PTSD is a separate medical diagnosis. Someone could be diagnosed with both complex PTSD and personality disorder.

Some people find it more appropriate to describe these difficulties as ‘complex emotional needs’, especially if they don’t consider themselves to have had traumatic life experiences.

This resource will use the term personality disorder. This is because it is the term currently used by the majority of healthcare professionals. It is also most familiar to the general public. We will use other terms, such as borderline personality disorder (BPD), later on in this resource only when referring to research.

Published: Apr 2025

Review due: Apr 2028

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