Grandiosity, entitlement, and self-focus can appear in both bipolar and narcissistic personality disorders, but the timing and pattern of symptoms are key.
Key Takeaways
- Narcissistic traits in bipolar disorder and narcissistic personality disorder (NPD) can look very similar, but they are separate diagnoses.
- Bipolar disorder and NPD can occur together, which can make symptoms harder to untangle.
- A careful diagnosis matters because the right treatment depends on whether symptoms are tied to mood episodes, a longer-term personality pattern, or both.
- Mood stability usually comes first, followed by therapy to address longer-term relationship patterns, impulsivity, or self-esteem issues.
When someone you care about seems unusually self-focused, grandiose, dismissive, or unable to see how their behavior affects others, it can be painful and confusing — especially when bipolar disorder is already part of the picture. Are these changes related to mania, or could they point to narcissistic personality disorder (NPD)?
The simplest answer: In bipolar disorder, narcissistic traits usually appear during hypomania or mania and fade as mood stabilizes. In NPD, these traits are more persistent and tend to show up across relationships, situations, and moods.
A StatPearls review defines NPD as a long-term pattern of grandiosity, meaning an exaggerated sense of self-importance, along with a need for admiration and difficulty with empathy. By contrast, if grandiosity, inflated confidence, reduced empathy, or intense self-focus only show up during hypomania or mania, these signs are more likely part of bipolar mood episodes, not a separate personality disorder.
NPD and narcissistic traits during bipolar mood episodes can look very similar and may even seem the same at first. However, they come from different causes and need different treatments. Knowing the difference can help reduce stigma, prevent mislabeling, and guide you or your loved one to the right care.
The Overlap Between Bipolar and Narcissism
Bipolar disorder and NPD are separate diagnoses, but they can share similar outward behaviors — like grandiosity or irritability — and sometimes occur together, which can make them difficult to tell apart.
- NPD affects between 1 and 6 percent of the population, according to current research.
- Bipolar disorder affects about 4.4 percent of adults in the United States over their lifetime, notes the National Institute of Mental Health (NIMH).
- Research shows significant overlap: Up to 25 percent of men and 5 percent of women with bipolar may also meet NPD criteria.
This overlap helps explain why similar behaviors may stem from different causes, and why getting the right diagnosis is key to effective support.
What Is Narcissistic Personality Disorder?
The word “narcissism” gets used a lot in everyday conversation, often to describe someone who seems selfish, arrogant, or attention-seeking. But narcissistic personality disorder is more than a difficult personality trait or a hurtful behavior pattern, explains the American Psychiatric Association. It’s a mental health condition that can affect a person’s relationships, work, emotional stability, and overall functioning.
Common NPD traits include:
- An exaggerated sense of self-importance
- A strong need for admiration or praise
- A sense of entitlement
- Trouble recognizing or responding to other people’s feelings (low empathy)
- Attention-seeking behavior
- Envy, arrogance, or a belief that others are envious of them
NPD does not look the same in everyone. Some people exhibit more grandiose traits (boldness, arrogance, aggression, and exploitation of others). Others show more vulnerable traits (hypersensitivity, defensiveness, shame, resentment, fragile self-worth).
The causes of NPD are complex and not fully understood. Genetics, early environment, temperament, and brain-based differences may all play a role, according to Mayo Clinic. Some research also links early trauma, neglect, harsh or excessive criticism or praise, or inconsistent caregiving to narcissistic traits.
For some people, these traits may begin as a way to protect themselves emotionally during childhood, according to a review of existing research. By adulthood, these patterns often become harmful rather than protective, creating problems in relationships, work, self-esteem, and emotional regulation. Still, every person with NPD has their own history, and no single explanation applies to everyone.
Bipolar Disorder and NPD: Similarities, Overlap, and Key Differences
Bipolar disorder and NPD can sometimes look similar from the outside. During hypomania or mania, a person with bipolar disorder may seem overly confident, self-focused, entitled, dismissive, or less aware of how their behavior affects others. That overlap can make it hard to know what is really going on.
State vs. Trait: Determining the Pattern
Mental health professionals often distinguish between a temporary mood state and a longer-term personality pattern.
“Narcissism is a pervasive and stable character trait that remains in spite of any changes in mood. In bipolar disorder, there are clear periods of time where someone is not displaying issues of irritability, grandiosity, or self-centeredness [that’s associated with narcissism],” says John M. Hawkins, MD, director of the Bipolar Disorders Clinic and staff psychiatrist at Lindner Center of Hope in Mason, Ohio.
In bipolar disorder, narcissistic traits are most likely to appear during hypomania or mania, when mood, energy, confidence, and activity levels are elevated. Elsa Ronningstam, PhD, a clinical psychologist at McLean Hospital at Mass General Brigham in Belmont, Massachusetts, says elevated mood states can inflate self-esteem. During these elevated mood states, someone may appear self-centered, entitled, or less empathetic — traits that can resemble NPD when viewed in isolation.
Identity and the ‘Baseline’ Self
A key difference is what happens when the mood episode resolves. In bipolar disorder, these traits usually improve as the person returns to a more stable mood state. Dr. Ronningstam notes that those with bipolar disorder can feel their sense of identity is different when they are euthymic (stable) compared with when they’re in an elevated mood state.
In NPD, by contrast, narcissistic traits are more persistent, explains Cleveland Clinic. They are more likely to be part of the person’s long-term sense of self and show up across moods, relationships, and situations.
When High Achievement Masks the Symptoms
This distinction is especially challenging when mood elevation looks like ambition or high productivity. “Those who have bipolar with narcissistic pathology have the potential for really great performance,” says Ronningstam. “The mood elevation can result in the ability to work more hours, enhanced performance, and achievements.”
But what feels inspiring or productive in the moment can still create problems with judgment and long-term stability. Because there is no blood test or brain scan to distinguish the two, doctors rely on a detailed clinical history to see if these behaviors fade as the mood episode ends or remain part of a person’s usual way of relating to themselves and others.
Can You Have Both Bipolar Disorder and NPD?
Diagnosis can get even more complicated because bipolar disorder and NPD can occur together. Other conditions, including borderline personality disorder, substance use disorders, trauma-related disorders, and attention-deficit hyperactivity disorder (ADHD), can also involve emotional intensity, impulsivity, relationship conflict, or an unstable self-image. These overlapping features can make it harder to tell what is driving the behavior.
Getting the diagnosis right matters. If someone is misdiagnosed, they might not get the right treatment, receive care that does not help, or face more stigma if their symptoms are seen as just “difficult” behavior instead of part of a mood episode, personality pattern, or both. Careful evaluation over time can help clinicians identify which symptoms come and go, which remain the same, and which kinds of support are most likely to help.
Treatment Approaches for Narcissism in Bipolar vs. Narcissistic Personality Disorder
When a person with bipolar disorder begins treatment, the first step is usually to focus on stabilizing their mood. This often involves medication, along with therapy, sleep regulation, and other lifestyle strategies that support daily stability. After the mood is stable, therapists can start working on any co-occurring NPD through psychotherapy.
Dr. Hawkins explains, “You really need to get the mood disorder [bipolar] under control before attempting to initiate the serious psychotherapy required to address NPD.” Although treating both conditions together can be difficult, he says, “both are treatable.”
Types of Psychotherapy Used
Once mood is stable, therapists may use longer-term therapies, such as psychodynamic or schema-focused therapy, to address NPD traits. Schema-focused therapy is a type of talk therapy that helps people recognize and change long-standing emotional and relationship patterns.
Some research on schema-focused therapy for bipolar disorder suggests it can help support mood stability and emotional regulation. Separately, schema-focused therapy has been shown to improve self-esteem and reduce impulsivity in people with NPD. For someone with both conditions, addressing impulsivity through schema therapy could be particularly valuable, since impulsivity occurs in both disorders.
These approaches can help people explore early relationship experiences, vulnerability, self-protection, and grandiose self-image. Because narcissistic traits can make treatment more challenging, therapists often use a supportive, structured approach. Depending on the person’s needs, treatment may also include cognitive behavioral therapy (CBT), emotion-regulation skills, boundary-setting, psychoeducation about bipolar disorder, and ongoing mood tracking.
Frequently Asked Questions
Is there a link between bipolar disorder and narcissism?
Some evidence suggests a link between bipolar disorder and narcissistic personality disorder (NPD), mainly because they share traits like grandiosity, reward-seeking, and social challenges. They can also occur together. However, they are still considered separate diagnoses, and more research is needed to understand whether they share deeper underlying pathways or simply overlap in certain ways.
Can someone have both bipolar disorder and NPD?
Yes, someone can have both bipolar disorder and NPD at the same time. Research shows that mood disorders — including bipolar disorder — are among the most common conditions to co-occur with NPD. When both are present, symptoms can be harder to untangle, making diagnosis and treatment more complex.
Can narcissism in bipolar disorder go away when the mood stabilizes?
Behaviors that seem narcissistic, like grandiosity, irritability, and self-centeredness, often become less noticeable or go away once a bipolar mood episode ends and mood stabilizes. But if a person also has NPD, these traits usually do not fade on their own because NPD is a lasting pattern, not just a symptom linked to mood.
What mental health conditions can be mistaken for narcissism?
Some mental health conditions can seem similar to narcissism because they share certain symptoms. For example, bipolar disorder and personality disorders like antisocial personality disorder and borderline personality disorder can involve impulsive actions, strong emotions, and relationship problems that may be mistaken for narcissistic behavior. At the same time, people with NPD may experience ongoing low mood, emptiness, or sensitivity to criticism, which can sometimes be confused with major depressive disorder.
What causes narcissistic personality disorder?
The exact cause of NPD is not fully understood, but it likely develops from a combination of factors. These may include genetics, temperament, early childhood experiences — such as inconsistent parenting, excessive praise, or criticism — and trauma such as abuse or neglect. Brain-based differences in how people process emotion and empathy may also play a role.
Editorial Sources and Fact-Checking
- Mitra P et al. Narcissistic Personality Disorder. StatPearls. March 1, 2024.
- Thalib HI et al. Tracing the Link Between Narcissistic Personality Disorder and Childhood Overgratification. Cureus. October 29, 2024.
- Bipolar Disorder. National Institute of Mental Health.
- Nagel MG et al. Bipolar Disorders and Narcissism: Diagnostic Concerns, Conceptual Commonalities and Potential Antecedents. Clinical Psychology & Psychotherapy. October 29, 2022.
- What Is Narcissistic Personality Disorder? American Psychiatric Association. January 30, 2024.
- Narcissistic Personality Disorder. Mayo Clinic. April 06, 2023.
- Weinberg I et al. Narcissistic Personality Disorder: Progress in Understanding and Treatment. Focus. October 25, 2022.
- Narcissistic Personality Disorder. Cleveland Clinic. August 3, 2023.
- Ociskova M et al. Schema Therapy for Patients With Bipolar Disorder: Theoretical Framework and Application. Neuropsychiatric Disease and Treatment. January 6, 2022.
- Mohseni F et al. The Effectiveness of Schema Therapy Focused on Mindset on Self-Esteem and Impulsivity in Individuals With Narcissistic Personality Disorder. Health Nexus. 2023.
- Fulford D et al. Commonalities and Differences in Characteristics of Persons at Risk for Narcissism and Mania. Journal of Experimental Research in Personality. April 5, 2010.
- Ronningstam E. Narcissistic Personality Disorder: A Basic Guide for Providers. Mass General Brigham Mclean.
