Bipolar Disorder

What Is Bipolar Disorder?

Bipolar disorder is a mental health condition that causes episodes of unusually high or irritable mood and increased energy, often along with episodes of depression. These changes affect sleep, thinking, behavior, and everyday responsibilities. They represent a change from the person’s usual self, rather than simply having a good day followed by a bad one.^[1]

You may notice depression first, or become concerned when someone barely sleeps but feels full of energy. An assessment looks at the whole pattern over time. Treatment can help people manage symptoms and build a fulfilling life, even when finding the right combination of care takes adjustments.^[1]

If you or someone else may be experiencing mania, severe depression, or losing touch with reality, seek urgent mental health assessment. In the U.S., call or text 988 for crisis support. Call 911 for immediate danger or a life-threatening emergency.^[2][1]

What Bipolar Mood Episodes Feel Like

A mood episode is a sustained period when mood, energy, and behavior change together. Someone may feel unusually energized, intensely irritable, deeply depressed, or a combination of these. Episodes can last days or weeks, sometimes longer. Some people return to their usual mood between episodes, while others have lingering symptoms.^[1]

For example, an assessment might explore a stretch of very little sleep accompanied by unusually high energy, rapid speech, and spending that is out of character. Trouble sleeping while feeling exhausted is a different experience. Neither example establishes a diagnosis on its own, but the distinction helps describe what happened.^[1]

Mania and Hypomania

Mania and hypomania can both involve increased energy, racing thoughts, faster speech, distractibility, and needing less sleep. A person may feel unusually confident or become more involved in activities with serious consequences, such as unaffordable spending or risky sexual decisions.^[1]

Mania is more severe than hypomania, not just longer. Mania causes major disruption, may require hospital care, and can include psychosis. Psychosis means losing touch with reality, such as hearing voices others do not hear or holding firmly to beliefs that are not true. Psychotic symptoms are not part of hypomania.^[3][1]

These timeframes help clinicians classify episodes. You do not need to wait for a certain number of days before asking for help. A sudden change in behavior, dangerous decisions, severe depression, or possible psychosis warrants prompt attention.^[2]

Bipolar Depression

Bipolar depression may make ordinary tasks feel overwhelming. Someone might stop enjoying activities, withdraw from other people, sleep much more or less, feel worthless, or struggle to concentrate. Depression does not always follow immediately after mania, and a person may seek help for depression without recognizing earlier periods of hypomania.^[1]

The symptoms can look similar to depression without a history of mania or hypomania. That history matters because it changes treatment decisions. Tell the evaluating clinician about times you felt unusually energized or needed much less sleep, even if those periods felt productive rather than distressing.^[1]

Mixed Features and Rapid Cycling

Mixed features means symptoms from opposite mood states occur together during an episode. For example, someone may feel depressed and hopeless while also having racing thoughts and increased energy. This combination deserves clinical attention.^[1][3]

Rapid cycling means at least four distinct mood episodes within a year. It does not mean every quick emotional change is a separate bipolar episode. A clinician considers the duration, severity, and pattern of the changes.^[3]

Types of Bipolar Disorder

Bipolar I Disorder

Bipolar I requires at least one manic episode. Many people also have major depressive or hypomanic episodes, but a depressive episode is not required for bipolar I. A person does not need to be manic all the time to have this diagnosis.^[1][3]

Bipolar II Disorder

Bipolar II involves at least one hypomanic episode and at least one major depressive episode, without a history of mania. Hypomania is less disruptive than mania, but the depressive episodes can be severe. The distinction between I and II should not be used to dismiss someone’s need for care.^[5][3]

Cyclothymia

Cyclothymia involves repeated periods of hypomanic and depressive symptoms that do not meet the full criteria for those episodes. In adults, the pattern lasts at least two years. Symptoms are present for at least half that period, with no symptom-free stretch longer than two months.^[5]

Symptoms below the threshold for a full episode can still interfere with relationships, work, and well-being. Tell a clinician about a persistent pattern even if you are unsure whether the word “episode” fits.^[5]

Other Explanations for Bipolar-Like Symptoms

Some people have bipolar-related symptoms that do not fit the main categories. Medication effects, alcohol or drug use, and medical conditions such as thyroid disease can also mimic or worsen mood symptoms. A careful assessment helps distinguish these possibilities and identify conditions that occur together.^[1]

How Bipolar Disorder Is Diagnosed

A useful assessment looks beyond how you feel on the day of the appointment. It considers mood changes across your life, their duration, their effect on daily functioning, and your family and treatment history. Physical examination or medical testing may help rule out another cause.^[1]

In a 2023 NIMH discussion, psychiatrist Francis J. McMahon explained: “There are no blood tests, brain scans, or other tests that will establish the diagnosis.” That makes your history important. Medical testing may still be useful for investigating other illnesses or planning treatment.^[4][1]

What to Bring to an Assessment

You do not need perfect records or the right diagnostic vocabulary. Write down a few specific examples, including periods when you felt unusually well or energetic. If you want someone close to you involved, their observations may help fill gaps in your memory.^[1][4]

• Timing. When did a change begin, how long did it last, and what were you like between changes?
• Sleep and energy. Were you unable to sleep and exhausted, or sleeping very little without feeling tired?
• Daily consequences. What happened with work, school, spending, relationships, or basic care?
• Medication and substance use. Include prescriptions, supplements, alcohol, cannabis, and other drugs, along with changes in use.
• Earlier care. Bring previous diagnoses, hospital records if available, and what helped or caused problems.

These prompts organize the history used in assessment. They are not a diagnostic test or a score you need to reach.^[1]

Bipolar Disorder, ADHD, and Borderline Personality Disorder

Problems with impulsive decisions, attention, or mood can have more than one explanation. ADHD and personality disorders may resemble parts of bipolar disorder or occur alongside it. Diagnosis requires the whole history, rather than matching one behavior to a label.^[2][3]

Borderline personality disorder and bipolar disorder are different diagnoses. Timing alone cannot distinguish them. A clinician considers the pattern and context of mood changes, relationships, and other symptoms. If a previous explanation no longer fits your experience, ask what supports the diagnosis and what alternatives have been considered.^[2]

When Bipolar Disorder Can Begin

Symptoms often begin in the late teens or early adulthood, although they can occur in children. If you are concerned about a young person, ask for an assessment that considers their age and development. Family history or difficult behavior alone does not establish bipolar disorder.^[1]

What Causes Bipolar Disorder?

There is no single established cause. Genes, brain function, and life experiences can contribute. Bipolar disorder often runs in families, but a family history does not mean someone will definitely develop it. Researchers have not identified one gene that causes the condition.^[1]

A 2014 genetics review reported heritability estimates of about 60%–80% from twin studies.^[6] Heritability describes differences across a population. It is not a child’s chance of inheriting bipolar disorder and does not mean genes explain that percentage of any one person’s illness.^[6]

Stressful experiences and changes in sleep or daily routines may contribute to episodes in vulnerable people. Alcohol and other drugs can also worsen or resemble mood symptoms. An episode can occur without an obvious trigger, so not recognizing a cause does not make the experience less real.^[1][5]

How Common Is Bipolar Disorder?

NIMH reports that an estimated 2.8% of U.S. adults had bipolar disorder in the past year in the National Comorbidity Survey Replication.^[7] The interviews were conducted in 2001–2003 among adults age 18 and older using the diagnostic criteria of that period. This is a historical estimate, not a count measured this year.^[7]

A separate adolescent survey conducted in 2001–2004 estimated that 2.9% of ages 13–18 had experienced bipolar disorder during their lifetime.^[7] Because the age groups and timeframes differ, the two percentages should not be combined or used as a trend.^[7]

Bipolar Disorder and Addiction

Bipolar disorder and addiction can occur together. Alcohol or drug use may complicate diagnosis and treatment, but having bipolar disorder does not mean addiction is inevitable. Discuss both concerns openly so the care plan accounts for mood episodes, substance use, medication interactions, and support needs.^[1][2]

A study of the 2012–2013 U.S. NESARC-III survey found higher odds of lifetime substance-use disorders among adults with bipolar I. The adjusted odds ratio was 5.8 after accounting for demographic factors and 2.3 after also accounting for other psychiatric disorders.^[8]

Those numbers describe an association in survey data. They do not mean that an individual is 5.8 times as likely to develop an addiction in the future, or prove that bipolar disorder causes addiction.^[8] The study relied on interviews and recall, rather than following people forward to determine cause.^[8]

If both conditions are present, ask about coordinated mental health and addiction treatment. Let the clinician know which substances you use, how often, and whether your mood changes happened before, during, or after use. You deserve help with both problems.^[1][2]

Other Conditions That Can Occur Together

Anxiety disorders, ADHD, and eating disorders can also occur alongside bipolar disorder. “Co-occurring” simply means more than one condition is present. It does not establish that one caused the other.^[1]

Physical health needs attention too. Treatment follow-up may include weight, blood pressure, and blood tests, depending on the medication and individual needs. Ask who will coordinate those checks with your primary care clinician.^[2]

How Bipolar Disorder Is Treated

Treatment has two jobs: address an episode happening now and help maintain stability afterward. The medication used for one phase may differ from the treatment used for another. Psychotherapy, regular routines, and practical support can work alongside medication.^[1]

Medication and Monitoring

Common medication groups include mood stabilizers and atypical antipsychotics. Lithium and valproate are examples of mood stabilizers. Antipsychotic medicines may treat bipolar mood symptoms even when someone does not have psychosis. The choice depends on the symptoms being treated, past response, side effects, and medical history.^[1]

Antidepressants may sometimes be added for bipolar depression, but they are not used alone because they can trigger mania or rapid cycling. Medicines for sleep or anxiety may also be part of a plan. Do not start, stop, or change treatment without discussing it with your prescriber.^[1]

Ask about monitoring and pregnancy plans before choosing a medicine. Lithium requires blood-level and kidney and thyroid checks. Valproate carries serious pregnancy risks. If you are pregnant or planning pregnancy, contact your prescriber promptly for an individualized plan rather than stopping medication on your own.^[2][1]

If side effects, cost, or a complicated schedule make medication difficult, say so. Feeling better can also make continuing treatment seem unnecessary. A clinician can help address those obstacles and explain the role of maintenance treatment, which continues between episodes.^[1]

What Therapy Can Help With

Psychotherapy can help you understand patterns, recognize early warning signs, manage stress, and work through problems that affect recovery. Ask for a therapist with training and experience in bipolar disorder who can coordinate with your prescriber.^[1][2]

• Cognitive behavioral therapy. Helps you examine unhelpful thought and behavior patterns and practice ways to manage difficulties.
• Family-focused therapy. Helps the person and participating relatives learn about the illness, communicate, and solve problems together.
• Interpersonal and social rhythm therapy. Works on relationships and regular daily rhythms, including when you sleep, wake, eat, and take part in activities.

These approaches have been studied alongside medication. In the 2007 STEP-BD trial, 293 outpatients with bipolar depression received medication care plus either a more intensive psychotherapy program or three sessions of education and illness-management support. By one year, 64.4% in intensive therapy had recovered from the depressive episode, compared with 51.5% in the brief program.^[9]

The trial supports adding structured therapy to medication care. It did not establish that therapy replaces medication, that one intensive therapy was clearly best, or that a general online counseling service would produce the same outcome. About one-third of participants did not complete the year’s follow-up.^[9]

When More Intensive Care Is Needed

Severe symptoms may require hospital treatment or another level of urgent care. Electroconvulsive therapy (ECT), a medically supervised brain-stimulation treatment, may be considered when other treatments have not helped or a rapid response is needed. A specialist can explain the benefits, risks, and alternatives.^[1]

A routine therapy booking is not a substitute for urgent assessment of suspected mania, severe depression, or psychosis. Tell the care team about immediate safety concerns and follow an existing crisis plan when you have one.^[2]

Finding Bipolar Treatment Near You or Online

Start with the service you need: a diagnostic assessment, medication care, therapy, or coordinated support for several concerns. A primary care clinician can help arrange a referral. For local care, ask whether the practice treats bipolar disorder in your age group and whether it can provide ongoing follow-up.^[1]

If you are considering online appointments, ask the same questions you would ask a local practice. Confirm that the clinician can provide care where you are located. Clarify whether the service offers prescribing and monitoring, therapy only, or coordination with an outside prescriber. Do not assume every counseling platform provides all of those services.

Before booking, ask:

• “How much experience do you have treating bipolar disorder?”
• “What will the assessment include, and who handles medication if I need it?”
• “Can my therapist and prescriber coordinate, with my permission?”
• “What do visits and any required tests cost, and do you accept my insurance?”
• “What should I do if I stop sleeping, become unusually energized, or feel unsafe between appointments?”

These are questions to help compare services, not a claim that a particular provider is available or suitable. Treatment access options can help you explore cost and other barriers while keeping the type of care you need in view.

Supporting a Loved One With Bipolar Disorder

Family and friends can offer support without trying to diagnose or control someone. Listen, describe changes you have noticed, and offer practical help with appointments or daily responsibilities. Include the person’s preferences when making plans.^[1]

In the same NIMH discussion, researcher Kathleen R. Merikangas described how relatives may notice changes in speech, movement, and behavior that the person does not recognize. That observation can help a clinician understand the history. It does not make a relative responsible for diagnosing an episode.^[4]

When things are relatively stable, ask whether your loved one wants to make a plan together. Write down their early warning signs, the person to contact, and what support they want. Agree on how to respond to concerns about sleep, spending, or safety. Medication changes should follow the clinician’s instructions.^[1][2]

Family mental health support can also help you look after your own needs. You can be supportive while setting limits around harmful behavior and getting help for yourself.^[1]

Taking the Next Step Toward Bipolar Care

You do not have to decide on a diagnosis before reaching out. Describe the changes that concern you and ask for an assessment that considers both depression and periods of increased energy. If you already have a diagnosis but still struggle, tell your care team which problems remain so you can review the plan together.^[1]

Ask about therapy that fits your needs, ongoing medication care, and practical support at home. If alcohol or drugs are also causing problems, bring those concerns into the same conversation.^[1]

For emotional distress or thoughts of suicide in the U.S., call or text 988. For immediate danger or a life-threatening emergency, call 911.^[1]