Learn more about the diagnoses and treatments for personality disorders, such as borderline personality and narcissistic personality.
Personality disorders: an overview
Personality disorder refers to a long-term pattern of thinking and behaviour that causes distress, making it difficult to function in everyday life. Read more for personality disorder symptoms and treatment.
Histrionic personality disorder
People with histrionic personality disorder can seem highly dramatic and approval seeking, with a desire to be the centre of attention.
Avoidant personality disorder
People with avoidant personality disorder appear shy and timid. They avoid people and situations because they fear negative judgement by others.
Antisocial personality disorder
People with antisocial personality disorder are sometimes called 'psychopaths'. They tend to disregard the law or other people’s rights.
Borderline personality disorder (BPD)
Borderline personality disorder (BPD) is a mental disorder affecting people's thoughts and behaviours, making it difficult to cope with life. Find out more about BPD symptoms and diagnosis.
Narcissistic personality disorder (NPD)
People with narcissistic personality disorder (NPD) may appear arrogant, with an inflated self-image and disregard for the feelings of others. Find out more about NPD causes and diagnosis.
Dissociative identity disorder
Dissociative identity disorder, also known as multiple personality disorder, can cause people to feel as though they have at least two distinct personalities.
Dialectical behaviour therapy (DBT)
Dialectical behaviour therapy (DBT) is used to treat people with borderline personality disorder. It aims to change negative thought patterns and behaviours.
Social behaviour disorders
Links to information about social behaviour disorders.