During periods of depression, a person with bipolar disorder may experience:
What’s the Difference Between Borderline Personality Disorder and Bipolar Disorder?
Bipolar disorder and borderline personality disorder (BPD) are two mental health conditions. They affect millions of people each year. These conditions have some similar symptoms, but there are distinctions between them.
Symptoms common to both bipolar disorder and BPD include:
- changes in mood
- impulsivity
- low self-esteem or self-worth, particularly during lows for people with bipolar disorder
While bipolar disorder and BPD do share similar symptoms, the majority of symptoms don’t overlap.
Symptoms of bipolar disorder
It’s estimated that up to 2.6 percent of American adults have bipolar disorder. This condition used to be called manic depression. The condition is characterized by:
- extreme changes in mood
- euphoric episodes called mania or hypomania
- episodes of deep lows or depression
During a manic period, a person with bipolar disorder may be more active. They may also:
- experience greater physical and mental energy than usual
- require less sleep
- experience fast-paced thought patterns and speech
- engage in risky or impulsive behaviors, such as substance use, gambling, or sex
- make grand, unrealistic plans
During periods of depression, a person with bipolar disorder may experience:
- drops in energy
- inability to concentrate
- insomnia
- loss of appetite
They may feel a deep sense of:
- sadness
- hopelessness
- irritability
- anxiety
In addition, they may have suicidal thoughts. Some people with bipolar disorder may also experience hallucinations or breaks in reality (psychosis).
In a manic period, a person may believe they have supernatural powers. In a period of depression, they may believe they have done something wrong, such as causing an accident when they have not.
Symptoms of BPD
An estimated 1.6 to 5.9 percent of American adults live with BPD. People with the condition have chronic patterns of unstable thoughts. This instability makes it difficult to regulate emotions and impulse control.
People with BPD also tend to have a history of unstable relationships. They may try hard to avoid feeling abandoned, even if it means staying in unhealthy situations.
Stressful relationships or events may trigger:
- intense changes in mood
- depression
- paranoia
- anger
People with the condition may perceive people and situations in extremes — all good, or all bad. They’re also likely to be very critical of themselves. In severe cases, some people may engage in self-harm, like cutting. Or they may have suicidal thoughts.
Researchers aren’t sure what causes bipolar disorder. But it’s thought that a few things contribute to the condition, including:
- genetics
- periods of profound stress or trauma
- history of substance abuse
- changes in brain chemistry
A broad combination of biological and environmental factors may cause BPD. These include:
- genetics
- childhood trauma or abandonment
- post-traumatic stress disorder (PTSD)
- brain abnormalities
- serotonin levels
More research is needed to understand the causes for both of these conditions.
The risks of developing bipolar disorder or BPD have been linked to the following:
- genetics
- exposure to trauma
- medical issues or functions
However, there are other risk factors for these conditions that are quite different.
Bipolar disorder
The relationship between bipolar disorder and genetics remains unclear. People who have a parent or sibling with bipolar disorder are more likely to have the condition than the general public. But, in most cases people with a close relative who has the condition will not develop it.
Additional risk factors for bipolar disorder include:
- exposure to trauma
- history of substance abuse
- other mental health conditions, like anxiety, panic disorders, or eating disorders
- medical issues such as thyroid disorder , stroke, or multiple sclerosis
Borderline personality disorder
BPD is five times more likely to be present in people who have a close family member, such as a sibling or parent, with the condition.
Additional risk factors for BPD include:
- early exposure to trauma, sexual assault, or PTSD (However, most people who experience trauma will not develop BPD.)
- genetic abnormalities that affect brain functions
A medical professional must diagnose bipolar disorder and BPD. Both conditions require psychological and medical exams to rule out other issues.
Bipolar disorder
A doctor may recommend the use of mood journals or questionnaires to help diagnose bipolar disorder. These tools can help show patterns and frequency of changes in mood.
Bipolar disorder typically falls into one of several categories:
- Bipolar I: People with bipolar I have had at least one manic episode immediately before or after a period of hypomania or a major depressive episode. Some people with bipolar I have also experienced psychotic symptoms during a manic episode.
- Bipolar II: People with bipolar II have never experienced a manic episode. They have experienced one or more episodes of major depression, and one or more episodes of hypomania.
- Cyclothymic disorder: Criteria for cyclothymic disorder includes a period of two or more years, or one year for children under 18, of fluctuating episodes of hypomanic and depressive symptoms.
- Other: For some people, bipolar disorder is related to a medical condition such as stroke or thyroid dysfunction. Or it’s triggered by substance abuse.
Borderline personality disorder
In addition to psychological and medical exams, the doctor may use a questionnaire to learn more about symptoms and perceptions, or interview the patient’s family members or close friends. The doctor may try to rule out other conditions before making an official diagnosis of BDP.
Can I be misdiagnosed?
It is possible that bipolar disorder and BPD may be confused with each other. With either diagnosis, it’s important to follow up with medical professionals to ensure a proper diagnosis has been made, and to ask questions about treatment if symptoms arise.
There’s no cure for bipolar disorder or BPD. Instead, treatment will focus on helping manage symptoms.
Bipolar disorder is commonly treated with medication, such as antidepressants and mood stabilizers. Medication is typically paired with psychotherapy.
In some cases, a doctor may also recommend treatment programs for additional support while people with this condition adjust to medication and gain control over their symptoms. Temporary hospitalization may be recommended for people with severe symptoms, such as suicidal thoughts or self-harming behaviors.
Treatment for BPD typically focuses on psychotherapy. Psychotherapy can help someone view themselves and their relationships more realistically. Dialectical behavior therapy (DBT) is a treatment program that combines individual therapy with group therapy. It’s been shown to be an effective treatment for BPD. Additional treatment options include other forms of group therapy, and visualization or meditation exercises.
Online therapy options
Read our review of the best online therapy options to find the right fit for you.
Understanding the Difference Between Bipolar and Borderline Personality Disorder
Learn the differences between these two disorders, how to spot the signs of each, and how to treat them.
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10 Min Read • Mental Health • Story By Courtney Allison
What is bipolar disorder vs. borderline personality disorder? Both diagnoses have been in the headlines, but many may wonder: what’s the difference?
Changing moods can often be a natural response to stressful situations. But for some, mood shifts are so extreme that they could be a sign of these more serious conditions, both of which are characterized in part by major mood swings, according to Frank Yeomans, M.D., Ph.D., director of training at the NewYork-Presbyterian Borderline Personality Disorder Resource Center, an internationally recognized center for the study of personality disorders.
“This partial similarity in mood shifts, going from an extremely high mood to a very low mood, causes many people, including some clinicians, to confuse the two disorders,” says Dr. Yeomans, who is also a clinical associate professor of psychiatry at Weill Cornell Medicine Department of Psychiatry and an adjunct associate professor of psychiatry at the Columbia University Vagelos College of Physicians and Surgeons Center for Psychoanalytic Training and Research. “Yet they are two distinct and serious diagnoses with different symptoms that require different methods of treatment.”
Mental health has moved more into the spotlight since the onset of the pandemic, with COVID-19 triggering a 25% increase in the prevalence of depression and anxiety worldwide, according to the World Health Organization. As for bipolar disorder and borderline personality disorder, these illnesses affect millions of Americans. Bipolar disorder is estimated to affect somewhere between 1 and 2.8% of U.S. adults, and studies show the prevalence of borderline personality disorder to range from 1.4 to 5.9% of the American adult population.
How do you know if you or someone you love suffers from one of these disorders? And how can you tell the difference? Health Matters spoke with Dr. Yeomans to define these disorders and explain the telltale signs and how to treat them.
What does borderline personality disorder look like?
Dr. Yeomans: Those with the disorder have extremely intense emotions that can shift rapidly from a negative, depressed state to an elated one, but with a predominance of negative feeling states. In this psychiatric illness, the extreme and intense mood swings often are precipitated by reactions to events (“trigger events”) that are disproportionate to the event and that someone else might take in stride. The illness is also characterized by rejection-sensitivity, chaotic relationships, and an overall difficulty in managing emotions.
For example, if a boyfriend or girlfriend does not return your call, instead of being annoyed and moving on, the combination of dejection and anger in a person with borderline personality disorder could possibly lead the person to cut their own wrists. Such destructive actions, usually of an impulsive nature, are a way of putting intense feelings, like rejection and anger, that you can’t tolerate, into action in an attempt to discharge the emotion rather than to continue to feel its intensity. The behavioral manifestations of intense emotions, in addition to self-cutting, include substance abuse, eating disorders, and sexual promiscuity — dramatic ways of behaving that stem from not being able to manage emotions.
In discussing disorders that involve changes in mood, it is important to make clear that not all depressed states indicate a psychiatric condition. If your spouse walks out on you or you lose a parent, it’s normal to feel depressed. In such cases, the depression may be an ongoing, terribly low, dejected mood but is appropriate to the circumstances. The borderline person demonstrates more reactivity to relatively minor events and demonstrates contradictory emotions that erupt over a short time.
How does borderline personality disorder affect relationships?
People with borderline personality disorder have relationships that can be chaotic and intense, veering between a desperate neediness for others to an intense anger or dismissal of others when feeling rejected, even in situations where the other person may in fact be neutral or even positive. Individuals with borderline personality disorder have difficulty accurately reading people’s emotions and trusting others. There is a difficulty with how the individual perceives others. Once, when a borderline patient told me a sad story that brought tears to my eyes, he became very angry because he was convinced that my tears, rather than an expression of empathy, were my way of mocking.
Where does the behavior stem from?
It comes from a combination of an emotionally charged temperament and the lack of a solid sense of self. Without a clear and coherent identity, the individual depends on what’s happening around them to determine what they feel and what they do.
What is the cause of this disorder?
There is no single cause of borderline personality disorder, though studies suggest that certain traits, especially a temperament characterized by intense emotional reactions, stem to a large degree from genetics.
Developmental factors, including problems with emotional attunement between a developing child and caregivers, seem to play a role, as do physical or sexual abuse, or emotional neglect. However, it’s important to note that in cases with a history of trauma, the disorder seems to stem from a combination of temperament and trauma rather than trauma alone, since many people who have experienced trauma early in life do not go on to develop serious psychiatric illnesses.
How is borderline personality disorder treated?
There is no medication that successfully treats the condition, although they may help reduce some specific symptoms, such as intense anxiety. Evidence-based models of psychotherapy are the treatment of choice. Dialectical behavioral therapy operates from the assumption that those with borderline personality disorder lack skills necessary to tolerate intense emotions or thoughts.
Transference-focused psychotherapy emphasizes the observation and interpretation of patient behavior in the relationship with the therapist to help identify unrecognized or distorted internal emotional states that are activated in relations with others and then to integrate them into a more coherent sense of self that includes emotional balance.
Mentalization-based therapy similarly helps individuals recognize their mental states and be aware of them in their relations with others.
Good psychiatric management is based on a case management model that combines a focus on the environment of the patient, psychoeducation, supportive therapy, and possibly family therapy.
What is bipolar disorder?
Like borderline personality disorder, sufferers experience extreme shifts in mood but between depressed states and episodes of mania, the bipolar patient may experience periods of stable mood.
For example, someone with bipolar disorder in a depressed state could be totally dejected, hopeless, and morbid, with no will to live. If they are in a manic state, they might be up all night writing page after page of a novel or playing music, with a sense that they have passed into a special state of genius. They might speak at a rapidly accelerated pace, with actions that are out of sync with appropriate social behavior — like disrobing and dancing in a park without awareness that it’s inappropriate. A full-blown manic episode shows a period of energy that could go on for days without any relief and would exhaust anybody else. In between the depressed and manic states, they may have periods of stable mood. In another variant of the disorder, some bipolar patients experience repeated depressive states without full-blown manic states; this is referred to as bipolar 2.
What is the cause of bipolar disorder?
Bipolar disorder is rooted in brain chemistry, structure and functioning, as well as genetics and family history.
How is bipolar disorder treated?
Bipolar disorder can be treated with medication, most often with lithium, which helps stabilize mood. More recently, other mood stabilizers have been developed that doctors might prescribe largely on a trial-and-error basis, depending on side effects for individual patients. Psychotherapy is usually helpful as well to aid the person in managing complications in his life that stem from the episodes of illness, and to monitor adherence to the medication regimen.
What are the key differences between the disorders?
When a person with bipolar disorder is not in a manic or depressive episode, they demonstrate stability that the borderline personality does not show. If a bipolar person is between episodes, they can function pretty well in the world. They can have in-depth relationships that might be disturbed by their periods of illness, but when they are not experiencing episodes, they have a stability that you do not see in the borderline person.
Bipolar disorder is more rooted in the biology of the nervous system and more responsive to medication. Borderline pathology strongly involves the psychological level of the mind – the way meaning is generated – in addition to the biology of the brain and nervous system. A more biological condition like bipolar lacks these deeply rooted psychological aspects, or ways of seeing the world and perceiving the self and others, that characterizes borderline disorders.
Mood swings of bipolar disorder are more random and less related to events than those of borderline. Those with bipolar might have a hair-trigger kind of response during an episode, whereas the borderline person has a hair-trigger response all of the time.
What is important for people to know?
Each is a serious illness, and those suffering need to seek out the proper treatment. Both illnesses can be successfully treated. Too often, individuals with borderline personality disorder are treated for depression or bipolar, when it is a more complex problem. It is essential for patients with borderline personality disorder to see a specialist. A lot of general therapists do not do a good job with this patient population: It’s like sending somebody who needs cardiac surgery to a general surgeon.
We recognize that finding the right specialist for this disorder is a problem people all across the country and the world have. To address this, we established a unique and valuable resource, the NewYork-Presbyterian Borderline Personality Disorder Resource Center. The Resource Center is a website and call center devoted to education about the disorder and to referring people to the proper specialists. We’ve had calls from literally all over the world and have connected people with help all the way from Australia to Russia and every place in between. In addition to the website, the center has an office at the NewYork-Presbyterian Westchester Behavioral Health Center campus staffed by a senior social worker.
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