Depression Symptoms in Australia: How to Recognise Them, When to See a GP
Clinical depression is one of the most common mental health conditions in Australia. The Australian Institute of Health and Welfare estimates that about one in seven Australians will experience depression at some point in their lives. The condition is real, treatable, and consistently under-recognised.
Clinical depression is not the same as ordinary low mood. It is a syndrome with specific features that persist over time, affect multiple areas of life, and respond to specific treatments. The Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5), defines a depressive episode as at least two weeks of significantly reduced mood or loss of interest, together with several other symptoms that affect daily functioning.
The framing matters. Many people delay seeking help because they assume their experience is 'not bad enough' or that they should be able to manage. Severity is not the threshold. Persistence and impact are. If symptoms have lasted more than two weeks and are affecting your life, the threshold is met.
This article walks through how depression presents, the difference between ordinary sadness and clinical depression, when to book a GP, and what an Australian GP can do. It is not a substitute for clinical assessment. If you are reading this because you are concerned, please book a consultation. If you are in crisis, call 000 or Lifeline on 13 11 14.
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The DSM-5 criteria for a major depressive episode require at least five of the following symptoms over at least two weeks, with at least one being depressed mood or loss of interest:
- Depressed mood most of the day, nearly every day.
- Markedly diminished interest or pleasure in most activities.
- Significant change in appetite or weight.
- Sleep disturbance, including insomnia or hypersomnia.
- Psychomotor agitation or slowing observable by others.
- Fatigue or loss of energy.
- Feelings of worthlessness or excessive guilt.
- Diminished ability to concentrate or make decisions.
- Recurrent thoughts of death or suicide.
In day-to-day life, that often looks like:
- The things you used to enjoy do not move you anymore.
- Getting out of bed feels like a project.
- Small decisions feel disproportionately hard.
- You feel slower than usual, or the opposite, restless and unable to settle.
- You feel guilt about things that previously did not weigh on you.
- You wake at 3am and cannot get back to sleep, or you cannot get out of bed in the morning.
- You catch yourself thinking life is too hard, or that others would be better off without you.
If you recognise yourself in this list, do not wait. Book a consultation.
Sadness is a normal human emotion. Low mood is a temporary state. Clinical depression is a syndrome that persists and limits.
Three differences help separate them:
- Persistence. Sadness is tied to a specific event and lifts as the event passes. Low mood lasts hours to a few days. Clinical depression lasts at least two weeks and often much longer.
- Pervasiveness. Sadness is about a specific thing. Low mood colours the day but other things still pull you out. Clinical depression covers most domains of life and is not lifted significantly by activities that previously helped.
- Functioning. Sadness does not stop you from working, sleeping, eating, or engaging. Clinical depression interferes with all of those.
Bereavement is a useful comparison. After a death, sadness can be intense and persistent for months. That is not automatically depression. A GP and psychiatrist will look at whether the pattern of grief is following a recognisable trajectory or whether it has tipped into clinical territory that needs treatment.
You do not need to draw the line yourself. A GP consultation is the right tool to work out where on the spectrum you sit and what makes sense from here.
Some thresholds for booking a GP appointment:
- Mood has been low or you have lost interest in most things for two weeks or more.
- Sleep, appetite, or energy have changed and are not recovering.
- Work, study, or relationships are affected.
- You are using alcohol, recreational drugs, or other behaviours to cope.
- Physical symptoms such as fatigue, gut issues, or headaches are part of the picture.
- Someone close to you has raised concern.
- You have any thoughts of self-harm or suicide.
If you are in crisis or having thoughts of self-harm, do not wait for an appointment. Call 000, present to your nearest emergency department, or call Lifeline on 13 11 14. For under-25s, Kids Helpline is available on 1800 55 1800.
A GP consultation does not commit you to a particular treatment path. It is a planning conversation. Most patients leave with a clearer picture of what is going on and a set of next steps that match their situation.
A GP is the right starting point for depression care in Australia. In a single consultation, a clinician can:
- Take a structured history covering mood, sleep, energy, appetite, life circumstances, and any prior mental health.
- Assess severity using validated tools such as the PHQ-9.
- Conduct a safety assessment that includes asking directly about self-harm and suicidal thoughts.
- Examine for physical contributors and arrange blood tests where indicated, such as thyroid function, iron, vitamin D, and vitamin B12.
- Discuss evidence-based options: psychological therapy, lifestyle and behavioural strategies, medication where clinically appropriate.
- Prepare a Mental Health Treatment Plan, which entitles eligible patients to Medicare-rebated psychology sessions.
- Refer to a psychologist, psychiatrist, or other specialist when the situation calls for it.
- Discuss workplace and study accommodations including medical certificates where appropriate.
- Arrange follow-up to review progress.
The Mental Health Treatment Plan is one of the most important tools available in Australian primary care. It opens access to subsidised psychology sessions per calendar year, which substantially reduces the cost of structured therapy.
This article does not name specific medications. The decision about whether and what medication is appropriate depends on your full clinical picture and is a conversation for you and your clinician.
Online appointments for mental health
Abby Health is one of Australia's largest online-first clinics. Mental health consultations are among the most common reasons patients reach us.
Our care network includes more than 300 clinicians available seven days a week. All Abby Health practitioners hold current AHPRA registration. Consultations are bulk billed for eligible patients with a valid Medicare card. Strict eligibility criteria apply.
Two things matter most for depression care: privacy and continuity.
Privacy: many patients find that an online consultation from home is less daunting than walking into a clinic, particularly for a first conversation about mental health.
Continuity: Seventy-one per cent of our patients who rebook see the same doctor again, which is the right model for mental health where context across appointments matters. The next consultation does not start from scratch.
Abby AI, our medical AI, prepares a clinical brief before every consultation. It surfaces relevant history, medications, and previous notes. It never diagnoses, never prescribes, and never replaces clinician judgment. It does mean your clinician starts the conversation with context.
If your mood has been low for two weeks or more and life feels harder than it should, book a consultation. If you are in crisis, call 000 or Lifeline on 13 11 14.
Can I be assessed for depression in an online consultation?
Yes. A GP can take a full history, use validated screening tools such as the PHQ-9 and K-10, conduct a safety assessment, and prepare a Mental Health Treatment Plan in a telehealth consultation. Most aspects of depression assessment and management in primary care work well via video consultation. A GP will discuss whether in-person review is appropriate in your specific case.
What is a Mental Health Treatment Plan?
A Mental Health Treatment Plan is a document prepared by a GP that identifies your mental health needs and the planned response. It entitles eligible patients to a defined number of Medicare-rebated psychology sessions per calendar year. The plan is reviewed periodically and adjusted as needed.
Will I need medication?
Not always. Many patients with mild to moderate depression respond well to psychological therapy and behavioural strategies without medication. For others, medication is part of the plan. The choice depends on the severity, your history, your preferences, and a clinical conversation with your doctor.
How long does treatment usually take?
There is no fixed timeline. Some patients see meaningful improvement within weeks of starting therapy or medication. Others need a longer course of treatment. Reviews are typically every two to four weeks early on, less frequently once the plan is stable.
What if I am in crisis?
Call 000 immediately if you are in danger or having thoughts of acting on suicidal feelings. Present to your nearest emergency department. Call Lifeline on 13 11 14 for 24-hour crisis support. Kids Helpline is available for under-25s on 1800 55 1800. Beyond Blue is available on 1300 22 4636.
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The information reflects guidance available as of the "last updated" date shown above. Medical knowledge evolves, and individual circumstances vary — always discuss decisions about your care with a qualified clinician.
In an emergency, call 000 or attend your nearest emergency department. Abby Health is not an emergency service. For mental health crisis support, call Lifeline on 13 11 14.
If you have feedback or believe any information in this article requires correction, please contact our editorial team at support@abbyhealth.app. Abby Health complies with AHPRA advertising standards and the Australian Commission on Safety and Quality in Health Care's National Safety and Quality Health Service Standards.





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