Narcissistic personality disorder (NPD) explained

A 2022 research review explains that experts now combine two views. One asks whether a person fits the condition. The other looks at how strongly key areas of personality are affected.

Areas a professional may consider

• Closeness: how deep and two-way relationships can be
• Empathy: understanding other people’s feelings
• Identity: how steady a person’s sense of self is
• Self-direction: setting and following meaningful goals

A professional looks at how long patterns have lasted and how severe they are, not at one argument or one hard season.

Many people with NPD don’t realise it for years. It often becomes clearer after a big stress, like losing a job, a divorce or a loss.

A Cleveland Clinic psychologist notes that the word has become a catch-all for people we see as bad. NPD is a clinical diagnosis made by a professional.

Self-worth may depend heavily on praise, success or being seen as special. When that support falls away, it can drop sharply.

People with NPD can be very sensitive to criticism and may feel deep despair after rejection or failure.

Difficulty managing emotions is one of the core areas researchers describe. Shame in particular can be very strong, and may come out as anger or withdrawal.

Research describes empathy and relationships as key areas of difficulty. A Cleveland Clinic psychologist adds that people with NPD may not realise they make others feel small, because of how they see themselves.

Experts describe a more grandiose, bold style and a more vulnerable, anxious style. The two often appear in the same person, especially when grandiosity is high.

NPD is more likely when close relatives have it.

A study of 304 twin pairs found genes explained about 23% to 35% of the differences in two narcissistic traits. Each person’s own life experiences explained even more, around 60% to 66%.

Studies that followed children over time found some early signs, such as attention-seeking, impulsiveness and conflict with others. Good parental supervision seemed protective in one study.

Research links narcissism to childhood experiences such as emotional or verbal abuse, coldness and having feelings dismissed. Trauma, rejection, neglect and lack of support are also listed.

A study of 565 children in the Netherlands found that children whose parents saw them as more special than others later scored higher on narcissism. Parental warmth predicted healthy self-esteem instead.

Overprotective or overindulgent parenting is also listed as a possible factor.

Risk appears higher in cultures that focus strongly on individual success, and lower where community and working together are valued.

Some brain differences have been seen, but it is not clear whether they cause NPD or result from it.

Researchers warn that relying only on what a person says about themselves can miss a lot. Professionals use more than one source of information and notice reactions in the room.

Part of a good assessment is checking for conditions with similar signs, and for conditions that often come along with NPD.

Some people experience being told about NPD as a shameful label. Researchers say clinicians need to share it with sensitivity.

Most people have some narcissistic traits. Having traits is not the same as having the disorder, which a professional diagnoses after a full evaluation.

A quiz can’t tell how long something has lasted, whether it shows up everywhere, or whether another condition explains it. Those are the questions professionals ask.

A Cleveland Clinic psychologist says labelling someone without a diagnosis is a big assumption, and adds stigma for people who really do have NPD.

• If it’s about someone else: focus on what they do and how it affects you
• If it’s about you: talk with a mental health professional
• Set boundaries based on behaviour
• Write down specific moments, not labels

Approaches Cleveland Clinic mentions

• Cognitive behavioural therapy (CBT)
• Couples or family therapy
• Dialectical behaviour therapy (DBT)
• Group therapy
• Metacognitive therapy

A 2022 review lists shared principles across approaches: setting realistic goals, building a trusting relationship with the therapist, and working on relationships and self-esteem.

In studies reviewed, about 63–64% of people with NPD dropped out of therapy. Shame, perfectionism and dismissing others predicted harder progress.

No therapy for NPD has yet been tested in large randomised trials. Studies that measured people before and after therapy did find meaningful improvement in symptoms and daily life.

Studies following people over time found that many improved. In one, about 53% no longer met the diagnosis two years later. Underlying traits tend to change more slowly than the diagnosis itself.

A study following people from age 18 to 41 found most became less narcissistic. Only about 3% increased. Serious relationships and becoming a parent were linked to bigger drops in vanity.

The outlook depends on how severe the condition is and how willing the person is to change.

People sometimes seek help only after a crisis or when loved ones say “something has to change”.

Setting healthy boundaries and sticking to them is a key piece of advice for people close to someone with NPD. Getting your own support matters too.

Relatives of people with NPD report higher distress. Support for family members is as important as support for the person with NPD.

• Avoid using NPD as a joke or insult
• Believe people who say they are struggling
• Describe what someone did, not what they “are”
• Encourage professional help, not online labels

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