Acute leukaemia.
A fast-moving blood cancer that needs urgent assessment — but one where prompt, modern treatment can be highly effective.
What is acute leukaemia?
Acute leukaemia is a fast-growing cancer of the blood and bone marrow. Immature cells called blasts multiply quickly and crowd out the normal cells the body needs, causing blood counts to fall. The two main types are acute myeloid leukaemia (AML) and acute lymphoblastic leukaemia (ALL).
Acute leukaemia develops quickly and is a medical emergency. If it is suspected, it needs same-day assessment. Sudden severe tiredness, unexplained bruising or bleeding, or high fevers with very abnormal blood counts should not wait — contact your doctor urgently or attend your nearest emergency department.
The urgency is not a reason to lose hope: with prompt, modern treatment, acute leukaemia is often very treatable and, in many cases, curable.
How it can present
Symptoms usually come on over days to a few weeks and reflect the fall in normal blood cells:
- Marked tiredness, breathlessness and pale skin (anaemia)
- Frequent, severe or unusual infections and fevers (low white cells)
- Easy bruising, bleeding gums or nosebleeds (low platelets)
- Bone or joint pain
- Sometimes swollen lymph nodes
How it's diagnosed
How it's treated
Treatment is urgent and usually begins in hospital. It typically involves chemotherapy, increasingly combined with targeted therapies chosen according to the leukaemia’s genetics, and in selected patients a stem cell transplant. Because treatment is time-critical, rapid diagnosis and coordination matter enormously.
We are linked with major public hospital haematology services in Melbourne’s west and can expedite access to public hospital treatment where appropriate — so you receive the latest expert care and multidisciplinary input, with access to clinical trials of emerging therapies where suitable. Private management is also available if you prefer a shorter wait or a particular setting.
When to refer — urgently
Suspected acute leukaemia is an emergency and should not wait for a routine appointment.
Frequently asked
Suspected acute leukaemia needs urgent assessment. Contact your GP or nearest emergency department without delay; we work closely with public hospitals to arrange immediate care.
This page provides general information only and is not a substitute for individual medical advice. It should not be used to diagnose or treat a health problem. Please speak with your GP or haematologist about your own circumstances. Last reviewed August 2026.