You may have a personality disorder if:
* Parts of your personality make it hard for you to live with yourself and other people
* Experience doesn’t teach you how to change the unhelpful parts of yourself
* You find it hard to make or keep relationships with friends, family and work colleagues
* You find it hard to control your feelings or behaviour
* You find that you upset or harm other people because you’re distressed
The cause of a personality disorder is not clear, but there is some evidence that, similar to other mental disorders, genes, brain problems and background can play a part. It’s thought one in ten people has some form of personality disorder.
Personality disorders tend to fall into three groups, with their own complex sub-groups: