Symptoms of Bipolar Disorder

Bipolar disorder symptoms

Verywell / Hugo Lin

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For more mental health resources, see our National Helpline Database.

Bipolar disorder isn't just about having mood swings. It's a serious mental health condition that used to be referred to as manic depression. There are two main types of bipolar disorder that can differ in terms of the severity and nature of their symptoms.

This article discusses the symptoms of bipolar disorder, including symptoms of both mania and depression. It also covers potential complications that may occur.

Signs & Symptoms

People with bipolar disorder experience dramatic shifts in mood that may include periods of depression and mania. The nature and severity of these symptoms depend on the type of bipolar disorder that they have.

  • Bipolar I: Individuals with bipolar I experience at least one manic episode in their lives. Although not required for the formal diagnosis, the vast majority will also experience major depressive episodes during the course of their lives.
  • Bipolar II: Individuals with bipolar II have at least one hypomanic episode (a less serious form of mania) and at least one major depressive episode.

Bipolar Mania or Hypomania Symptoms

Symptoms of a manic or hypomanic episode include:

Manic episodes last at least seven days. Hypomanic episodes involve the same symptoms, but the individual's functioning isn't markedly impaired and there are no psychotic symptoms.

Bipolar Depression Symptoms

During a depressive episode, an individual may experience the following symptoms:

  • Crying for no reason or prolonged periods of sadness
  • Difficulty concentrating or indecisiveness
  • Extreme fatigue, including the inability to get out of bed
  • Feelings of guilt or hopelessness
  • Loss of interest in activities that usually give you pleasure
  • Loss of interest in health, nutrition, or physical appearance
  • Sleeping excessively or difficulty sleeping
  • Suicidal thoughts or an impulse to self-harm

Problems with cognitive skills, such as subjective memory trouble, difficulty concentrating, and indecision, can be the first things noticed by others when someone has bipolar depression.

Cognitive difficulties can interfere with an individual's thinking and make hard for them to complete tasks.

Physical Symptoms Associated With Depressive Episodes

During depressive episodes, individuals may experience a variety of physical symptoms, including unexplained aches and pains.

Changes in weight are also common. While some people struggle to eat when they're feeling down, others turn to food for comfort. Thus, both weight loss and weight gain can be symptoms of a depressive episode.

Psychomotor agitation, an increase in activity caused by mental rather than physical tension, or psychomotor retardation, slowing of both thought and physical activities, may also occur.

Rare Symptoms

While less common, people may sometimes experience a mood disorder known as cyclothymia. This condition causes mood changes that are not as severe as those in bipolar I or bipolar II disorder. Cyclothymia often emerges in adolescence. In many cases, it can be a precursor to bipolar I or II disorder.


There are two primary types of bipolar disorder, which are different in terms of how symptoms present and their severity. Bipolar I involves having manic episodes marked by symptoms such as delusions, hallucinations, excessive energy, decreased need for sleep, and elevated moods. Bipolar II causes depressive episodes and hypomania, which is a less severe form of mania.

Complications & Comorbidities

Bipolar disorder can lead to complications in a person's life. It can also present differently in certain groups. There is no cure for bipolar disorder, but the symptoms can be managed effectively with appropriate treatment. Some potential complications that can occur if the condition is not treated include:

  • Difficulties in school or work
  • Drug or alcohol use
  • Financial and legal problems
  • More severe symptoms
  • Psychosis
  • Relationship problems
  • Suicide or attempted suicide

Differences in Men and Women

Bipolar disorder occurs in men and women at approximately the same rates. However, the presentation of symptoms and course of the condition may differ depending on the sex that an individual was assigned at birth. 

Men are often diagnosed at an earlier age, experience more severe episodes, and are more likely to have co-occurring substance use issues. Women tend to have more depressive episodes and more rapid cycling between manic and depressive episodes.

Note that symptoms of bipolar disorder are the same in women and men, but societal and gender roles can affect how they manifest or how others perceive them.

In Children

While bipolar disorder is most frequently diagnosed in adults over the age of 18, it can also occur in children. The course of the condition tends to be more severe when diagnosis occurs during childhood. 

Symptoms also often manifest differently in children than in adults. Some of the symptoms that children may experience include:

  • Aggressiveness
  • Decreased need for sleep
  • Depressed moods
  • Frequent mood swings
  • Hyperactivity
  • Irritability
  • Restlessness
  • Risk-taking behaviors
  • Temper tantrums

During depressive episodes, children may exhibit symptoms such as headaches, stomachaches, excessive sleep, changes in appetite, feelings of sadness, and lack of energy.

Because these symptoms are not always specific to bipolar disorder and often associated with other conditions, it is important to receive an evaluation and diagnosis from a healthcare professional. Getting an accurate diagnosis early on can lead to more effective interventions and improve treatment outcomes.

Co-Occurring Conditions

There are a number of conditions that can co-occur alongside bipolar disorder or that have similar sets of symptoms that may complicate diagnosis. Some of these co-occurring conditions include:

Attention Deficit Hyperactivity Disorder (ADHD)

Hyperactivity and distractibility are two of the hallmark symptoms of attention deficit hyperactivity disorder (ADHD). However, they are also quite predominant in bipolar disorder, especially as it relates to children. To further complicate things, these conditions can often co-occur.

Alcohol or Substance Use

It is very common for those with bipolar disorder to struggle with alcohol and substance use. This is often an attempt, even on an unconscious level, to self-medicate. Alcohol may interact with the medications used to treat bipolar disorder.

Borderline Personality Disorder 

Borderline personality disorder causes impulsivity, suicidal behavior, reactivity of mood, inappropriate anger, and transient paranoia, which are also associated with bipolar disorder. It is possible for an individual to be diagnosed with both of these disorders as well.


The one thing that distinguishes depressive disorders (unipolar depression) from bipolar disorder is mania/hypomania. If a patient with depression swings into an episode of mania, the diagnosis becomes bipolar disorder.

Misdiagnosed bipolar disorder is sometimes discovered after people start taking antidepressants, leading to the onset of mania.

Eating Disorders

It is not uncommon for those with bipolar disorder to experience eating disorders. Moreover, depression, anxiety, and irritability often result from eating disorders.

Panic Disorder

Panic disorder is characterized by recurrent, spontaneous panic attacks. Panic disorder is often comorbid (occurs together) with mood disorders and other psychiatric disorders. Panic attacks are also common in those with bipolar disorder.


Schizophrenia is a mental disorder that causes intense disturbances in cognition (thinking), behaviors, and emotions. Symptoms of the condition include delusions, hallucinations, disorganized speech and thinking, disorganized behavior, catatonic behavior, inappropriate moods, flattened emotions, lack of speech, and a reduction in goal-directed behavior. The symptoms of schizophrenia are easily confused with those of bipolar disorder.

Schizoaffective Disorder

Schizoaffective disorder involves having symptoms of major depression or mania, along with certain symptoms of schizophrenia. However, the delusions or hallucinations must persist for periods when the mood symptoms aren’t present. As you might expect, there is a great deal of confusion and controversy surrounding differentiating this disorder from bipolar disorder.


Co-occurring conditions can affect the course of bipolar disorder or contribute to misdiagnosis. Bipolar disorder is often misdiagnosed as depression, and people who have bipolar disorder may be more likely to use alcohol or other substances to cope with symptoms of their condition.

Frequently Asked Questions

Frequently Asked Questions

  • When should you see a doctor?

    If you or someone you know is experiencing symptoms of bipolar disorder, it's important to talk to a healthcare provider. They may want to rule out any potential physical health issues that could be contributing to your symptoms. Getting diagnosed and starting treatment can help minimize the risk of experiencing severe symptoms, such as psychosis. If psychosis—which is characterized by a break with reality in which the individual sees, hears, or believes things that are not real—does occur, it is important to seek medical attention immediately.

  • Why is it important to distinguish between type I and type II bipolar disorder?

    The two types of bipolar disorder share common symptoms but differ in the way that mania presents. Because symptoms of mania are more severe in bipolar II disorder, people who have that condition may need different treatments in order to help manage their symptoms.

    In order to diagnose bipolar disorder, a healthcare provider will assess your symptoms, including their frequency, duration, and severity. If you are currently experiencing a depressive episode, be sure to mention whether you have experienced symptoms of mania or hypomania in the past. 

  • Why is it important to differentiate between bipolar disorder and major depressive disorder?

    Certain medications used to treat major depressive disorder can contribute to the onset of mania if a person has bipolar disorder. Unfortunately, it is not unusual for people with bipolar disorder to be misdiagnosed with depression.

    According to a study published in 2018, 60% of patients seeking care for recurring depression actually have bipolar disorder. This is often because people are more likely to seek treatment while experiencing a depressive episode.

12 Sources
Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Culpepper L. The diagnosis and treatment of bipolar disorder: decision-making in primary carePrim Care Companion CNS Disord. 2014;16(3):PCC.13r01609. doi:10.4088/PCC.13r01609

  2. Perich T, Mitchell PB, Loo C, et al. Clinical and demographic features associated with the detection of early warning signs in bipolar disorder. J Affect Disord. 2013;145(3):336-340. doi:10.1016/j.jad.2012.08.014

  3. Rijavec N, Grubic VN. Depression and pain: often together but still a clinical challenge: a review. Psychiatr Danub. 2012;24(4):346-52.

  4. Baldessarini RJ, Vázquez G, Tondo L. Treatment of cyclothymic disorder: commentaryPsychother Psychosom. 2011;80(3):131-5. doi: 10.1159/000322234 

  5. National Institute of Mental Health. Bipolar disorder in children.

  6. Ghouse AA, Sanches M, Zunta-Soares G, Swann AC, Soares JC. Overdiagnosis of bipolar disorder: a critical analysis of the literatureScientificWorldJournal. 2013;2013:297087. doi:10.1155/2013/297087

  7. Paris J, Black DW. Borderline personality disorder and bipolar disorder: what is the difference and why does it matter?. J Nerv Ment Dis. 2015;203(1):3-7. doi:10.1097/NMD.0000000000000225

  8. Gitlin MJ. Antidepressants in bipolar depression: an enduring controversyInt J Bipolar Disord. 2018;6(1):25. doi:10.1186/s40345-018-0133-9

  9. Kornstein SG, Kunovac JL, Herman BK, Culpepper L. Recognizing binge-eating disorder in the clinical setting: A review of the literaturePrim Care Companion CNS Disord. 2016;18(3):10.4088/PCC.15r01905. doi:10.4088/PCC.15r01905

  10. Preti A, Vrublevska J, Veroniki AA, Huedo-Medina TB, Kyriazis O, Fountoulakis KN. Prevalence and treatment of panic disorder in bipolar disorder: systematic review and meta-analysis. Evid Based Ment Health. 2018;21(2):53-60. doi:10.1136/eb-2017-102858

  11. Cleveland Clinic. Bipolar disorder.

  12. Phillips ML, Kupfer DJ. Bipolar disorder diagnosis: challenges and future directionsLancet. 2013;381(9878):1663–1671. doi:10.1016/S0140-6736(13)60989-7

By Marcia Purse
Marcia Purse is a mental health writer and bipolar disorder advocate who brings strong research skills and personal experiences to her writing.