World Thrombosis Day

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World Thrombosis Day From Head to Toe, Take Control. World Thrombosis Day is a global campaign of the ISTH that raises awareness of thrombosis on Oct. 13.
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Celebrated year round, World Thrombosis Day (WTD) is recognized on 13 October. WTD focuses attention on the often overlooked and misunderstood disease of thrombosis. With thousands of educational events in countries around the world, WTD and its partners place a global spotlight on thrombosis as an urgent and growing health problem. Bringing together communities around the world to , the quiet, underlying disorder that is the common mechanism of the world’s three top cardiovascular killers – heart attack, stroke and venous thromboembolism (VTE) – the International Society on Thrombosis and Haemostasis (ISTH) launched WTD in 2014. Partnering with thrombosis societies from every continent of the world, the ISTH teams up with continental cardiovascular, neurology and hematology organizations in the effort to educate the public, health care professionals and policy makers about thrombosis risks, prevention and treatment. More than 5,000 partners from every continent of the world have pledged their support to WTD, with more joining every day. For a list of those organizations and for those interested in making the pledge and joining the effort, visit www.worldthrombosisday.org. We invite you to participate! To join the movement now, visit: www.worldthrombosisday.org/join/. Supporter Disclosure: The WTD campaign is supported by the following organizations: BMS/Pfizer Alliance, Bayer, Cardinal Health, Inari Medical, Leo Pharma, Roche, AstraZeneca, Penumbra, Regeneron, Total CME, Urban Emu and Viatris

Photo Disclaimer: If you submit a photo through the WTD website or social media pages, you grant permission for the campaign to share the submitted photo on its website and/or in its yearly impact report. The campaign maintains all rights to images as they relate to the campaign, any distribution or use thereof. The campaign is not legally liable for any reproduction of images. If you have questions or wish to remove a photo, email us at [email protected].

This is such a powerful reminder that self-advocacy can be an important part of the health care journey. Keeping track o...
11/03/2026

This is such a powerful reminder that self-advocacy can be an important part of the health care journey. Keeping track of symptoms, writing down questions and speaking up when something does not feel right!

Blood clot symptoms can sometimes be mistaken for other conditions, which is why awareness matters.

The Czech Republic is taking blood clot awareness to new heights!The third annual Mountain Virchow’s Triad Challenge bro...
11/02/2026

The Czech Republic is taking blood clot awareness to new heights!

The third annual Mountain Virchow’s Triad Challenge brought communities together to get moving, enjoy the great outdoors and raise awareness about thrombosis!

From mountain hikes to horseback riding 🐎, participants showed that spreading awareness can be an adventure!

A huge shoutout to the Czech Society for Thrombosis and Haemostasis of the Czech Medical Association J. E. Purkyně for organizing this incredible initiative and inspiring communities to stay active while spreading life-saving awareness.

10/31/2026

Blood clots and cancer: not as separate as you might think. In this Blood Clot Busters video, supported by , Prof. Florian Langer explains why patients with cancer are at risk of developing blood clots.

Watch, then share this video with someone who could use the information. Comment and like the post to help us reach more people this

Pam spent her career helping patients with blood clots. Then, she became one herself.As an ER nurse and member of her ho...
10/31/2026

Pam spent her career helping patients with blood clots. Then, she became one herself.

As an ER nurse and member of her hospital's pulmonary embolism response team (PERT), Pam Vyhonsky knew the dangers of blood clots firsthand. But when she began experiencing intermittent dizziness, she never imagined she could be facing a life-threatening pulmonary embolism.

After two weeks of symptoms, Pam suddenly passed out and was rushed to the hospital, where she received life-saving treatment. Her story is a powerful reminder that blood clots can affect anyone, even those who know the warning signs best.

🎥 Watch Pam's incredible story and help us spread awareness: https://youtu.be/D94SAN1F8FE

This patient story is presented by Stryker.

This Halloween, don't let blood clots give you a fright!🎃👻 The scariest things aren't always the ones that go bump in th...
10/30/2026

This Halloween, don't let blood clots give you a fright!🎃👻

The scariest things aren't always the ones that go bump in the night! Blood clots can be life-threatening, but knowing your risks and practicing healthy habits can help keep them at bay.

This spooky season, the only scares we want are the ones in your favorite Halloween movies! Stay safe, stay informed and have a Happy Halloween from World Thrombosis Day!

10/30/2026

Are women with cancer really at lower risk for blood clots? In this Blood Clot Busters video, supported by , Ana Fernández Montes breaks down why that assumption does not hold up and what women should know.

Watch the video, then share it with someone who needs to hear it.

10/29/2026

Think thrombosis or blood clots are rare in patients with cancer? Think again. In this Blood Clot Busters video, supported by , Marcello DiNisio, M.D., sets the record straight on just how common this risk really is.

Watch the video, then share it with your circle, drop a comment and like the post so more people get the facts.

London, we're loving your World Thrombosis Day spirit! A huge shoutout to the Haematology Thrombosis Team at St George’s...
10/29/2026

London, we're loving your World Thrombosis Day spirit! A huge shoutout to the Haematology Thrombosis Team at St George’s University Hospitals NHS Foundation Trust for taking blood clot awareness across the hospital this World Thrombosis Day!

From educating colleagues to encouraging everyone to , this dedicated team helped shine a light on the importance of venous thromboembolism (VTE) prevention.

👏 Thank you for your incredible efforts and for reminding us that raising awareness is a team effort! We're so grateful to have you as part of our global movement.

Today is World Stroke Day! Did you know an irregular heartbeat can lead to a stroke? Atrial fibrillation, or AFib, is a ...
10/29/2026

Today is World Stroke Day! Did you know an irregular heartbeat can lead to a stroke? Atrial fibrillation, or AFib, is a common heart rhythm problem. It’s linked to about 1 in 5 strokes.

Here’s how it happens. When your heart beats out of rhythm, blood can pool inside it and form a clot. If that clot travels to the brain, it can block blood flow and cause a stroke. People with AFib are about five times more likely to have a stroke.

The good news: Medicines called blood thinners can lower that risk.
Watch for a racing or fluttering heartbeat, shortness of breath, tiredness or dizziness. If you notice these signs, talk with your doctor, even if they come and go.

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