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Condition guide

Bipolar Disorder

Bipolar disorder is a mental health condition involving distinct episodes of elevated mood (mania or hypomania) and episodes of low mood (depression), separated by periods of more stable mood. It affects an estimated 1 in 50 Australians at some point in their life. With the right treatment and support, many people with bipolar disorder manage it effectively and lead full lives.

This page covers what the different episode types look like, what tends to contribute to bipolar disorder, and how it’s typically treated.

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Recognising it

What are the symptoms of bipolar disorder?

Manic or hypomanic episodes

  • Elevated, expansive, or unusually irritable mood
  • Increased energy or restlessness
  • Reduced need for sleep without feeling tired
  • Rapid speech or racing thoughts
  • Inflated self-confidence or grandiosity
  • Impulsive decisions — spending, risk-taking, or relationship choices that feel out of character
  • Difficulty concentrating on one thing at a time

Hypomania is a milder, shorter version of mania that doesn’t cause the same level of impairment, but can still be disruptive and is an important marker for diagnosis.

Depressive episodes

  • Persistent low mood or loss of interest
  • Fatigue and low energy
  • Difficulty concentrating or making decisions
  • Changes in sleep and appetite
  • Feelings of worthlessness or hopelessness
  • In some cases, thoughts of death or suicide

The specific pattern, frequency, and intensity of episodes varies between individuals, and between the different diagnostic types of bipolar disorder.

Understanding why

What causes bipolar disorder?

Genetics
Bipolar disorder has a strong genetic component and often runs in families.
Neurological & biological factors
Differences in brain structure and neurotransmitter regulation are associated with bipolar disorder.
Life stress & major transitions
Episodes can be triggered or worsened by significant stress, disrupted sleep, or major life changes, though bipolar disorder itself is not caused by stress alone.
Substance use
Can trigger episodes or complicate the presentation in some individuals.

As with most mental health conditions, bipolar disorder develops from a combination of biological vulnerability and environmental factors, rather than a single cause.

Getting better

How is bipolar disorder treated?

  • Medication

    Mood stabilisers and other medications, prescribed and monitored by a GP or psychiatrist, are typically central to managing bipolar disorder (psychologists do not prescribe medication).

  • Psychoeducation

    Understanding episode patterns, early warning signs, and triggers is a significant part of effective long-term management.

  • Cognitive behavioural therapy (CBT)

    Adapted for bipolar disorder, can help manage depressive symptoms and unhelpful thought patterns.

  • Routine-focused approaches

    Such as interpersonal and social rhythm therapy, which focus on stabilising sleep and daily routines, given their strong link to episode triggers.

  • Family-focused therapy

    Can help family members understand the condition and support long-term management.

Ongoing psychological support alongside medical management is generally associated with better long-term outcomes than medication alone.

Next step

When should I see a psychologist about bipolar disorder?

You don't need to wait until symptoms feel unmanageable.

  • ✓Distinct periods of unusually elevated mood, energy, or irritability, alongside separate periods of depression
  • ✓Impulsive decisions or behaviour during high-energy periods that you later regret
  • ✓A family history of bipolar disorder alongside your own mood symptoms
  • ✓Existing bipolar disorder that feels harder to manage, or a change in your usual pattern
  • ✓Thoughts of self-harm or suicide during a depressive episode — seek support immediately, see crisis contacts above

Bipolar disorder is generally diagnosed by a psychiatrist, though a psychologist is often a valuable and accessible first point of contact and can work alongside a psychiatrist and GP as part of your ongoing care. A GP can help you access a Mental Health Care Plan under Medicare's Better Access initiative, which provides rebates for a set number of psychology sessions per year.

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Common questions

Frequently asked questions

What’s the difference between bipolar disorder and regular mood swings?

Everyone experiences mood fluctuations, but bipolar disorder involves distinct, sustained episodes of mania or hypomania and depression that are noticeably different from a person’s usual mood and functioning, often lasting days to weeks rather than hours.

Can a psychologist diagnose bipolar disorder?

Diagnosis is generally made by a psychiatrist, given the complexity of distinguishing bipolar disorder from other conditions. A psychologist can provide valuable ongoing support and often plays a key role in identifying early signs and referring you appropriately.

Can people with bipolar disorder live full, stable lives?

Yes. With effective treatment — typically a combination of medication, therapy, and routine management — many people with bipolar disorder manage the condition well and lead full lives, including in relationships and careers.

Do I need medication if I have bipolar disorder?

Medication, prescribed by a GP or psychiatrist, is typically a central part of managing bipolar disorder, though the right approach is individual. A psychologist can provide therapy alongside medical treatment but cannot prescribe medication themselves.

Is online therapy effective for bipolar disorder?

Telehealth can be a convenient and effective option for the psychological therapy component of bipolar disorder management, though ongoing coordination with a prescribing GP or psychiatrist remains important regardless of format.

Related conditions & support

  • Depression
  • Anxiety
  • Psychological & Cognitive Assessment
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