Personality disorders explained

Personality disorders can run in families. Genes may make someone more emotionally sensitive or reactive, but genes alone do not decide what happens.

Research suggests some people have differences in the brain areas that manage emotions and impulses. This can make feelings rise faster and settle more slowly.

Brains can learn. Therapy and practice help build new ways of calming down.

Long-term stress, abuse, neglect or growing up in an unpredictable home can teach lessons like “people leave” or “I must be perfect to be loved”. These lessons once helped a child cope, but they can cause pain later.

NIMH notes that many people with borderline patterns were exposed to unstable or invalidating relationships. When feelings are dismissed or punished, it is hard to learn how to manage them.

This is one reason validation, showing that feelings make sense, is such a big part of therapy and of support at home.

People with avoidant patterns often have very low self-esteem and are extremely sensitive to criticism. They may long for friends and closeness but avoid social situations, jobs or commitments because they expect to be rejected or embarrassed.

This is more than shyness. It can shape whole lives: turning down promotions, skipping events, or never sharing feelings in case someone laughs.

What helps

• Building a kinder inner voice
• Group therapy, which can feel scary at first but is often very healing
• Small, gentle steps into social situations
• Talk therapies like CBT, schema therapy and psychodynamic therapy

Dependent patterns involve a constant, strong need for someone else to take care of you. People may find everyday decisions very hard without lots of advice, need frequent reassurance, and feel panicky at the thought of being alone or separated from an important person.

Sometimes people stay in unhappy or even unsafe relationships because being alone feels more frightening. Avoidant and dependent patterns often appear together.

What helps

• Learning assertiveness: saying what you want and need
• Practising small decisions on your own
• Therapy that builds confidence in your own judgement
• Widening your circle of support so it does not rest on one person

Obsessive-compulsive personality disorder (OCPD) is a deep focus on perfectionism, organisation and control. People may get so caught up in details, lists and rules that tasks never get finished, and they may find it very hard to compromise or let others help.

It can look like

• Being very hard on yourself and others about mistakes
• Finding it hard to throw things away
• Seeing situations as all right or all wrong
• Struggling to delegate unless things are done “my way”
• Working so much there is no time for fun or loved ones

On the outside, people with OCPD may seem confident and successful. Inside, the pressure can be huge, and relationships often suffer. It is the most common personality disorder in the U.S., affecting about 3% to 8% of adults.

Talk therapies such as CBT and psychodynamic therapy can help people loosen the grip of rules and enjoy life more.

OCD involves unwanted, upsetting thoughts and rituals that a person usually knows don’t make sense and wishes would stop. OCPD is a way of being: the person often sees their high standards as correct and may not see them as a problem.

• OCD: “I hate these thoughts. Please make them stop.”
• OCPD: “If everyone just did it properly, there would be no problem.”

Some people have both. For more on OCD, see the OCD guide.

Borderline personality disorder (BPD) is the best-known personality disorder. At its heart is great difficulty managing emotions, often with a deep fear of abandonment. It is very treatable.

Some people live with ongoing distrust and suspicion of others, often reading bad intentions into everyday events. Professionals call this paranoid personality disorder.

Living on guard all the time is exhausting and lonely. Often it grew from experiences where trusting people really was unsafe. Patient, respectful therapy can help build trust slowly.

Some people show little interest in close relationships and express few emotions. Professionals call this schizoid personality disorder.

Liking your own company is not a disorder. It only becomes a concern when the pattern brings distress or makes life very hard.

Some people have unusual beliefs, ways of thinking or behaviour that make close relationships difficult, and may feel very anxious around others. Professionals call this schizotypal personality disorder.

If unusual beliefs come with hearing or seeing things others don’t, please see the Psychosis & schizophrenia guide and talk to a clinical provider.

Some people feel a strong need for attention and approval, and may feel uncomfortable when they are not the centre of things. Professionals call this histrionic personality disorder.

Underneath, there is often a fear of not mattering. Therapy can help people find a steadier sense of worth from the inside.

Some people show an inflated sense of their own importance and find it hard to feel empathy for others. Professionals call this narcissistic personality disorder.

The word “narcissist” is thrown around a lot online. Being selfish or vain sometimes is not a disorder. Real narcissistic patterns often hide very fragile self-esteem and shame.

Some people show a long-lasting disregard for rules and for the rights of others. They may get frustrated quickly, struggle to control anger and blame others. Professionals call this antisocial personality disorder.

“Antisocial” here does not mean shy or unsociable. It is also more common in males, according to Cleveland Clinic.

DBT teaches four sets of skills: mindfulness, managing emotions, getting through a crisis without making it worse, and handling relationships. It was developed for borderline patterns.

“Mentalising” means thinking about what is going on in your own mind and in other people’s minds. Under stress, this ability can switch off, which leads to misreading people. MBT helps you step back and wonder before reacting.

Schema therapy looks at deep beliefs formed early in life, like “I will always be abandoned” or “I am defective”, and helps you build a kinder inner voice. It is used for borderline, avoidant and perfectionist patterns.

CBT helps people spot and change unhelpful thoughts and actions. Psychodynamic therapy explores how past experiences shape present feelings and relationships. Both are used for anxious and perfectionist patterns.

Group therapy lets people practise new ways of relating in a supportive space. Some people in the UK attend therapeutic communities: intensive group programmes where people learn and heal together.

Personality keeps changing throughout life, and therapy works. In a 16-year study, almost all people with BPD (99%) had a lasting period where symptoms eased a lot. Relapse got less likely the longer improvement lasted.

TV and films often show people with personality disorders as villains. In reality, the person most at risk is usually themselves, through self-harm, suicide risk or other health problems.

Personality disorders are real mental health conditions, shaped by genes, brain differences and life experiences, often including trauma. They are not a choice or a weakness.

In a large U.S. survey, sex and race were not linked to how common personality disorders were.

Calling someone by a diagnosis can make it sound like that is all they are. Person-first words remind everyone there is a whole human there, with strengths, history and hopes.

Professionals themselves are moving towards describing difficulties and traits rather than fixed labels.

Using diagnoses as insults teaches people to hide their struggles. Describing the behaviour (“that comment hurt me”) is clearer and kinder than a label.

Learning about what your loved one is going through helps you see the pain behind the behaviour. Reactions that seemed “out of nowhere” often make more sense once you understand the fear or emotion driving them.

Validation means letting someone know their feelings are real and understandable. It does not mean agreeing with everything, or approving of harmful actions.

Try saying

• “I can see how hurt you are.”
• “I’m here. Let’s take a breath together.”
• “It makes sense you felt scared when I didn’t reply.”

Boundaries are about what you will do, not controlling the other person. For example: “I want to talk, but I won’t stay in a conversation where I’m being shouted at. I’ll come back in 20 minutes.”

Be calm, consistent and caring. Follow through on what you say. Boundaries help everyone feel safer and more predictable.

Encourage your loved one to keep going with treatment, and support daily structure and healthy routines. Family therapy can help the whole family learn new ways to communicate.

Take any talk of self-harm or suicide seriously. Encourage professional help, and call or text 988 if needed.

BPD Alliance (the National Education Alliance for Borderline Personality Disorder) runs a free family course called Family Connections, for loved ones of someone with BPD traits or ongoing emotional struggles. A formal diagnosis isn’t needed.