ADHD Vs. Narcissism (NPD): Similarities And Differences

Attention-deficit/hyperactivity disorder (ADHD) and narcissistic personality disorder (NPD) are distinct conditions in different categories of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). The two conditions can share some symptoms, such as emotional dysregulation and impulsivity, but the underlying reasons for the symptoms, as well as other signs of each disorder, differ. An in-person or online therapist can offer support and treatment if you believe you may be living with ADHD, NPD, or another condition.

What is narcissistic personality disorder (NPD)?

NPD is one of 10 diagnosable personality disorders in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). It’s characterized by symptoms like a grandiose self-perception, a preoccupation with admiration from others, and a lack of empathy that are frequent and significant enough to represent a pervasive pattern of pathological narcissism.

In other words, narcissistic tendencies are often thought of as existing on a spectrum, from mild, nonclinical traits to more severe, pathological symptoms. Part of a clinician’s job in considering an NPD diagnosis is identifying the severity of the tendencies and how they impact the person’s daily functioning and relationships.

Key symptoms of NPD

To receive an NPD diagnosis, individuals must display at least five of the following symptoms:

• Extreme arrogance; perceived superiority over others
• An exaggerated sense of self-importance or grandiosity and an overinflated self-image
• A sense of entitlement
• The belief that they are exceptional and deserve special treatment
• A preoccupation with fantasies of being successful, influential, important, or beautiful
• A need for constant validation, admiration, and excessive praise from others
• Envy of others or the belief that others are envious of them
• Lack of empathy
• Self-focused exploitation of others for personal gain

What is attention-deficit/hyperactivity disorder (ADHD)?

ADHD is a neurodevelopmental disorder typically characterized by hyperactivity, difficulty paying attention, and/or impulsive behavior. Symptoms first appear in childhood and typically persist into adulthood. ADHD can also be seen as a spectrum disorder, with symptoms ranging from mild to severe. 

To receive an ADHD diagnosis, adults must display five or more of the ADHD symptoms listed below. Symptoms must generally have a significant impact on the individual’s daily functioning for more than six months in two or more settings (e.g., work, school, socially, etc.). 

Key symptoms of ADHD

There are three primary presentations of ADHD in children and adults, depending on the type of symptoms a person experiences the most. They are: predominantly inattentive, predominantly hyperactive/impulsive, and a combined type.

A person with the predominantly inattentive presentation often:

• Is easily sidetracked by external stimuli
• Has attention difficulties
• Struggles with listening
• Avoids starting or completing tasks requiring focus
• Misplaces or loses items often
• Makes careless mistakes
• Has trouble following directions

A person with the predominantly hyperactive/impulsive presentation often:

• Is overly talkative and interrupts others during conversation
• Has difficulty staying seated
• Fidgets frequently
• Is markedly restless
• Has difficulty engaging in quiet activities
• Often speaks or acts without thinking

A person with the combined type may display symptoms of both presentations. Also note that a person with any type of ADHD may have trouble regulating emotions and display intense, prolonged fixation on an activity or interest (hyperfocus). Difficulty with executive functioning, such as time management and organizational skills, can also be common across ADHD types. 

ADHD symptoms that can be misread socially

Certain ADHD symptoms may be misread by others, potentially interpreted as rudeness or signs of another condition, like NPD. For example, a person with ADHD may have rejection sensitivity, which could lead to frequent reassurance-seeking. Or, their hyperfocus could lead them to perform grand gestures for a loved one, which could be interpreted by some as manipulative or not genuine. Understanding common symptoms of ADHD and how they differ from signs of other conditions can be helpful.

Similarities between ADHD and NPD

It is possible for a person to have both ADHD and NPD, but it’s also possible for symptoms of one to sometimes look like symptoms of the other. Three common areas of overlap between symptoms or effects of ADHD and NPD include:

• Impulsivity
• Relationship difficulties
• Emotional dysregulation

Impulsivity

Impulsivity is a common symptom of ADHD, thought to be driven by neurological dysregulation. A person with this symptom may struggle to wait their turn, blurt out without thinking, or make hasty decisions. NPD can also involve impulsivity, but it’s typically driven by a lack of consideration for consequences due to an inflated sense of self-importance.

Relationship difficulties

Individuals with ADHD and NPD might both experience interpersonal difficulties, but for different reasons. People with ADHD sometimes have difficulty adhering to social norms because of symptoms like forgetfulness, hyperactivity, and impulsivity. In contrast, people with NPD may struggle with interpersonal relationships due to symptoms like self-centeredness, delusions of superiority, and lack of empathy. 

Emotional dysregulation

Emotional dysregulation—which may include mood swings and emotional outbursts—can be a common feature of both ADHD and NPD. With ADHD, individuals may struggle to regulate their emotions due to impulsivity and difficulty focusing. With NPD, emotional dysregulation can stem from fragile self-esteem and a hypersensitivity to criticism.

Both disorders can also involve a heightened sensitivity to rejection, which could lead to more intense emotional responses in some situations—though the underlying mechanisms differ. With ADHD, rejection sensitivity may be linked to neurological differences as well as past experiences of criticism (such as from parents or teachers) from growing up with undiagnosed, unmanaged, or misunderstood ADHD symptoms. With NPD, rejection sensitivity may be tied to low self-esteem and a fear of not being perceived as perfect or superior.

Why people sometimes confuse ADHD symptoms with narcissism

ADHD and narcissistic traits or NPD may have some similarities on the surface, but it’s the intent behind the actions that matters when differentiating between the two. NPD symptoms often stem from a lack of empathy, which can lead to manipulative actions. In contrast, ADHD-related interrupting and forgetfulness, for example, stem from neurological differences rather than an intention to deceive or disrespect.

Also, people with ADHD may be more likely to reflect and take accountability for any of their actions that have harmed others. People with NPD may have difficulty with self-awareness or the desire to do so.

Key differences between ADHD and NPD

Despite similarities, ADHD and NPD are very different conditions. For one, ADHD is a neurodevelopmental disorder and a type of neurodivergence, while NPD affects someone’s personality. Also, ADHD symptoms first appear during childhood, while a person may develop NPD symptoms later, so it isn’t typically diagnosed until after age 18. 

Beyond these, the key differences lie in the causes and motivations behind their behaviors. For example, consider the following situations for a person with NPD vs. a person with ADHD:

• “Love bombing.” People with NPD might give expensive gifts and plan over-the-top gestures of affection to get attention and create the impression that they’re thoughtful or affectionate. As the relationship progresses, they often become emotionally detached and exploit their partner for personal gain. People with ADHD may also enter relationships with intensity, but it's typically due to hyperfocus and isn’t usually meant to deceive or manipulate. 
• Detachment during a conversation. A person with ADHD might sometimes appear detached or distracted during a conversation, but it’s often due to trouble focusing. In contrast, a person with NPD may be detached from a conversation because they’re attempting to manipulate the other person by ignoring or stonewalling them.
• Being habitually late. Someone with NPD may be habitually late because they may struggle with empathy in respecting other people’s time, or are trying to show that they’re too important to care. People with ADHD are often late to appointments, too, but it’s usually because they have difficulty with organization and time management. 

Finally, in many cases, people with ADHD tend to be more likely to apologize for any hurtful behavior, while it can be uncharacteristic for people with NPD to genuinely apologize. Instead, they may experience a lack of empathy and maintain that others are the problem. 

Can ADHD and narcissism co-occur in the same individual?

It can be possible for a person with ADHD or NPD to also have co-occurring disorders, such as depression, bipolar disorder, substance use disorder, and/or other personality disorders. These can exacerbate symptoms and complicate diagnosis and treatment. For example, comorbid borderline personality disorder (BPD), anxiety, or mood disorders could intensify mood swings that a person with ADHD or NPD may already experience.

It is also possible for a person to have both ADHD and NPD. Some studies suggest that ADHD may be associated with a higher risk of certain personality disorders, but research is ongoing to understand any shared risk factors between the two. Keep in mind that having two disorders co-occur doesn’t mean one caused the other—in other words, ADHD does not cause NPD or vice versa. 

Assessment and diagnosis for ADHD and NPD

Only a trained clinician can diagnose ADHD or NPD. To evaluate a person’s symptoms, they’ll typically conduct a diagnostic interview. They may ask about topics like the individual’s:

• Mental health history
• Symptom patterns, including whether they occur in various settings to the same extent 
• Level of impairment caused by symptoms
• Age of symptom onset

The clinician will typically compare their findings to diagnostic criteria from the DSM to arrive at a diagnosis(es), if one applies.

Keep in mind that self-diagnosing or trying to diagnose a partner or parent is not recommended. It may result in inaccurate and unfair labeling and treatment delays. If you suspect you or a loved one may be living with ADHD, NPD, or another condition, seeking professional support (or encouraging them to seek professional support) can be the most effective next step.

ADHD vs. narcissism: treatment differences

ADHD treatment often involves a combination of doctor-prescribed medication, therapy, and lifestyle changes. The treatment plan for NPD usually involves psychotherapy.

Talk therapy approaches, such as cognitive behavioral therapy (CBT) and behavior modification techniques, are often the primary approach in helping individuals with ADHD manage symptoms. These therapies may focus on skill-building and emotional regulation. Lifestyle changes, like implementing structured routines, exercising regularly, eating nutrient-dense meals, and practicing mindfulness, may also help with ADHD symptom management. 

For NPD, cognitive behavioral therapy and psychoanalytic or psychodynamic therapy may be recommended to target symptoms like low self-esteem, trouble with empathy, and emotional dysregulation. Group therapy is often a part of NPD treatment, too.

Stimulant medications may also be prescribed for ADHD in some cases to improve cognitive functioning in areas like focus, attention, and impulse control. For NPD, there is no specific medication approved for the treatment of symptoms, though medication may sometimes be prescribed as part of the treatment for comorbid conditions, such as depression or anxiety.

How to seek treatment for ADHD or NPD

Seeking professional treatment for signs of ADHD, NPD, or any other condition can be crucial for improving daily functioning and overall well-being. You can typically reach out for this type of mental health support in person or online. To find in-person care, you can get a referral from your doctor, use an online directory, or search for providers through your insurance company. To find virtual care, consider an online therapy platform like BetterHelp.

How online therapy can help you address your symptoms

Online therapy through BetterHelp allows you to meet with a licensed therapist virtually, via phone, video, or live chat. Online therapy sessions can be easier to consistently attend than in-person sessions, since you can log on from anywhere with an internet connection. 

Getting therapy online can also be more cost-effective than getting therapy in person without insurance. Plus, some BetterHelp therapists now accept select insurance plans (state-limited). 

Finally, research suggests that online ADHD therapy can often be as effective as in-person therapy for treating ADHD. While there’s not much research yet on the efficacy of online therapy for NPD, many studies suggest that online therapy in general tends to produce similar client outcomes as in-person therapy for a variety of mental health disorders.