Blood thinners

Blood thinners are medicines used to help prevent heart attacks and strokes by preventing blood clots from forming. Read more about how they work and who should take them.

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International normalised ratio (INR) test

The international normalised ratio (INR) test is a measure of the time taken for your blood to clot. Find out more about this test and what it means.

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Thrombosis

Thrombosis, such as deep vein thrombosis (DVT), is where a blood clot forms in a vein or artery. Learn about the risk factors and how to prevent it.

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Vaginal bleeding

Vaginal bleeding can happen at times other than during your periods. Find out what to do if you have heavy periods or unexpected vaginal bleeding.

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Deep vein thrombosis (DVT)

Deep vein thrombosis (DVT) is a blood clot that occurs in a vein. Complications can be serious. Find out about the symptoms and how to prevent a DVT.

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Pulmonary embolism

A pulmonary embolism is serious. If a blood clot gets stuck in your lungs it can cause problems with your heart and breathing. Learn the symptoms.

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Thrombosis with thrombocytopenia syndrome (TTS)

Learn about TTS, a blood-clotting syndrome linked to the AstraZeneca COVID-19 vaccine (Vaxzevria). This vaccine is no longer available in Australia.

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D-dimer test

The D-dimer test is a blood test that checks for, or monitors, blood-clotting problems. Find out what a positive result means for you.

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Blood in urine (haematuria)

There are many causes of blood in urine (wee), also called haematuria. Read about the causes, tests and when to see your doctor about blood in urine.

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Bumps, knocks and bruises

Bumps, knocks and bruises are common injuries. Read about related symptoms, when to see a doctor, treatment options and possible complications.

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Vitamin K deficiency

Vitamin K deficiency can stop your blood from clotting properly and weaken your bones. Read more about how to prevent and treat vitamin K deficiency.

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Bleeding between periods

Vaginal bleeding between periods is a common symptom. Find out what can cause bleeding between your periods and when you should see your doctor.

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Transient ischaemic attack (TIA)

A transient ischemic attack (TIA) has similar symptoms to a stroke but usually lasts less than an hour. Urgent medical attention is critical. If you think you are having a TIA, call 000 for an ambulance.

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Blood in semen

Blood in your semen (haematospermia) can be alarming, but it is usually not serious. It will pass within a few days. Find out about blood in semen.

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Stroke

A stroke is when the blood supply to part of your brain is interrupted. Learn the 'FAST' test for stroke symptoms, which can save a person's life.

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Blood clots

Blood clots can cause different problems depending on where they are in your body. A blood clot can affect your heart, lung or brain, which could be life-threatening. Learn how to recognise the signs and symptoms of a blood clot.

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Insect bites and stings

Explore treatment and prevention methods for insect bites and stings. Learn about symptoms, first aid and severe allergic reactions (anaphylaxis).

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