Narcissism and narcissistic personality have become widely discussed terms on social media. This discussion can be useful because it helps people understand unhealthy relationship patterns. However, there is also a growing problem: even a small conflict between couples can sometimes lead to one partner being labelled a “narcissist”.
A normal argument, selfish behaviour, defensiveness or occasional lack of empathy does not automatically indicate Narcissistic Personality Disorder (NPD). The 9 Signs of Narcissistic Personality Disorder described in the DSM-5-TR represent a much more persistent pattern involving grandiosity, need for admiration, entitlement, exploitation and lack of empathy.

1. Grandiose Sense of Self-Importance
A person may repeatedly exaggerate their achievements, talents or abilities and expect others to recognise them as superior.
For example, someone might repeatedly present ordinary achievements as extraordinary and become extremely uncomfortable when others question their claimed superiority.
However, being confident about your abilities is not narcissism. A person can feel proud of their achievements and talk about them without having a personality disorder.
2. Preoccupation With Exceptional Success, Power or Beauty
The person may have a persistent preoccupation with fantasies of unlimited success, power, brilliance, beauty or ideal love.
This is different from simply having ambitions or being proud of one’s appearance, intelligence or achievements. A healthy person can have high goals while still accepting that other people may also have significant abilities and achievements.
The concern arises when the belief becomes rigid and consistently centres on being exceptionally superior.
3. Belief That They Are Special or Unique
A person may believe that they are fundamentally special and that only certain exceptional or high-status people can understand them.
For example:
“Ordinary people cannot understand someone like me.”
This is different from occasionally saying, “Nobody understands me,” during an emotional argument. Statements made during temporary frustration should not be treated as evidence of NPD by themselves.
4. Excessive Need for Admiration
Everyone likes appreciation. Wanting recognition for your work, appearance, effort or achievements is normal.
The concern arises when admiration becomes an excessive and persistent need, particularly when the person expects continual praise and reacts strongly when they do not receive it.
For example:
“If you don’t appreciate me, you are disrespecting me.”
One episode of feeling disappointed because someone did not appreciate you is not enough to identify narcissism.
5. Sense of Entitlement
A person may have an unreasonable expectation of special treatment or automatic compliance from others.
For example:
“I should get priority because I am more important.”
Wanting respectful treatment is completely normal. Entitlement becomes concerning when the person consistently expects special treatment regardless of the situation and becomes highly reactive when others do not comply.
6. Exploiting Others
Another important sign is repeatedly using other people primarily to achieve one’s own goals.
For example, a person may maintain relationships mainly because the other person provides money, status, attention, contacts, practical help or other benefits.
However, this needs context. A person may occasionally behave selfishly under pressure and later recognise the harm they caused. A repeated interpersonal pattern of using others for personal gain is more clinically relevant.
7. Lack of Empathy
The DSM-5-TR describes this as difficulty recognising or identifying with the feelings and needs of others.
But “I ignored my partner’s feelings during one argument” does not automatically mean narcissism.
People can become emotionally overwhelmed, angry or defensive and temporarily fail to notice another person’s feelings. If they later recognise what happened, understand the impact and genuinely attempt to repair the relationship, that is different from a persistent pattern of disregarding others’ emotional experiences.
8. Envy or Belief That Others Are Envious
A person may repeatedly feel envious of others or believe that other people are envious of them.
There is an important difference between having occasional doubts and holding a persistent belief that other people’s success is motivated by jealousy.
For example:
“They are succeeding, so I feel a little jealous.”
This is a normal human emotion.
A more concerning pattern would be:
“Everyone who criticises me is jealous of my success.”
9. Arrogant or Haughty Behaviour
The ninth criterion involves arrogant or haughty behaviours and attitudes.
The person may consistently behave as though other people are beneath them, display contempt towards people they consider inferior, or place excessive importance on superiority and status.
Again, confidence and assertiveness are not the same as arrogance. A confident person can still respect people who disagree with them.
Five or More Signs Does Not Mean “You Are a Narcissist”
The DSM-5-TR uses nine characteristic criteria for NPD, with five or more required for the diagnosis. But simply counting five behaviours from a social-media checklist is not enough to diagnose someone.
Clinicians consider whether the pattern is pervasive, persistent, occurs across different contexts, and causes significant problems in functioning or relationships, while also considering alternative explanations. NPD involves a broader and more enduring personality pattern rather than a collection of behaviours appearing occasionally.
The WHO’s ICD-11 also uses a dimensional approach to personality disorders, considering the severity of personality dysfunction and prominent trait domains rather than relying only on simple labels.
Don’t Label Everyone You Disagree With
Not every difficult partner, angry parent, selfish friend or argumentative person has Narcissistic Personality Disorder.
Many narcissistic traits can appear to some degree in ordinary human behaviour. What matters clinically is the pattern, persistence, rigidity and impact, not whether someone displayed one unpleasant behaviour during a conflict.
So, before calling someone a narcissist, look beyond the argument.
Was this a temporary reaction—or a persistent interpersonal pattern?
If you genuinely suspect Narcissistic Personality Disorder, a proper assessment by a qualified mental-health professional is more meaningful than a social-media checklist.
Understanding these differences can help us recognise genuine psychological problems without turning every relationship conflict into a psychiatric diagnosis.