Difference Between Borderline Personality Disorder and Narcissistic Personality Disorder

Difference Between Borderline Personality Disorder and Narcissistic Personality Disorder

What is the difference between borderline personality disorder and narcissistic personality disorder? And what childhood factors cause one vs. the other to develop?

By Dr. Elinor Greenberg

Let’s imagine two women meet for lunch. One has Borderline personality disorder and the other has a Narcissistic personality disorder. They are new colleagues at work and do not know each other very well.

If we could peek into their minds, here is what each might be thinking:

Borderline Woman:

I hope she likes me. I could really use a friend at work. She looks nice. I feel so lonely here since Sherry left.

Narcissistic Woman:

She looks fat in that dress, but she is wearing a Prada bag. I wonder how much that bracelet cost. I am not sure I want to be seen with someone who looks like her.

What we are seeing in this example is a real difference in priorities that is typical of the differences between people with Borderline and Narcissistic adaptations. The Borderline woman is focused on being liked and forming a new and emotionally satisfying relationship that will take the place of the one she recently lost. The Narcissistic woman is assessing the Borderline woman’s value as a status enhancer.

Related: Why Do You Keep Attracting Narcissists and How to Avoid Getting Involved With Them

Narcissists are ultrasensitive to status markers and try to only be associated with people, institutions, and objects that they believe will reflect well on them. They believe that: proximity to status increases their status.

If we look a little more closely at these two diagnoses, we see some marked differences in how Borderline and Narcissistic individuals approach life:



Their continual desperate search for reparenting in the form of love, romance, and nurturing leads them to choose and cling to inappropriate people and neglect other areas of their life. They spend very little time planning for the future, taking care of their health, managing their money, and attending to normal day-to-day chores.

They would like other people to take on all the adult responsibilities that they prefer to ignore. Their life is littered with unfinished projects. They have difficulty setting realistic goals and staying motivated long enough to succeed in reaching them.

Related: 10 Borderline Personality Disorder Facts That You Must Know


People with narcissistic personality disorder are continually seeking ways to enhance and stabilize their self-esteem and ward off shame-based self-hating depressions. In the process, they often alienate those around them by their grandiosity and their need to be the center of admiring attention. They are overly sensitive to negative feedback and may devalue anyone that they believe is criticizing them. They are low on empathy and have little capacity for true intimacy, which makes it very hard for them to form successful love relationships.



They want to be seen as lovable, receive unconditional love, find their “Soul Mate,” and get reparenting for everything that they missed in childhood. They would also like someone else to do all the hard adult things that they find intimidating.


They want to be seen as perfect, special, unique and entitled to special treatment. They want to attain high status, get continual admiration and recognition from others, and always be right.

Related: Who Is a Malignant Narcissist? Who Are The People They Target



When they are required to self-activate, structure their own time and life, and act independently.


When they have to work with other people and treat them as equals; loss of status, aging, or rejection; having to apologize or admit that they have made a mistake.

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They use “splitting” (seeing people as all-good or all-bad), denial, and a variety of acting-out behaviors to distract and distance themselves from their pain—substance abuse, picking fights, cutting, binge eating, video gaming, gambling, etc.

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