World Thrombosis Day

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 wtd@isth.org.

Be the first to hear about new resources, research and campaign opportunities.Sign up for The Beat, our monthly newslett...
12/04/2025

Be the first to hear about new resources, research and campaign opportunities.

Sign up for The Beat, our monthly newsletter, and receive updates straight to your inbox.

Together, we're raising awareness and saving lives. Sign up here: bit.ly/4nPko50

12/03/2025

A pulmonary embolism (PE) happens when a blood clot travels to the lungs and it can be life-threatening.

Warning signs include sudden shortness of breath, sharp chest pain that worsens when you breathe deeply, rapid heartbeat, coughing (sometimes with blood), and feeling lightheaded or faint.

If you notice these symptoms, seek emergency care immediately.
PE can be treated — but only if it’s caught early. Learn more about PE: bit.ly/3JSS9Es

This  , join the fight against one of the world’s leading causes of preventable death ❤️💙When you donate to  , you help ...
12/02/2025

This , join the fight against one of the world’s leading causes of preventable death ❤️💙

When you donate to , you help fund the education and awareness that saves lives. Your support fuels critical programs that empower patients and healthcare providers to recognize DVT and PE before it’s too late.

Make your impact today: www.worldthrombosisday.org/take-action/donate-to-world-thrombosis-day/

12/01/2025
12/01/2025

Hormonal contraception can increase a woman’s risk for blood clots. In some case, that risk may be up to nine times higher than for women who don’t use hormonal methods. Learn more about hormonal and nonhormonal contraceptive options: bit.ly/HBC-25

12/01/2025

Atrial fibrillation (AF) can lead to serious health complications, including a threefold increase in the risk of heart failure.

But with early diagnosis and treatment, people living with AF can continue to lead active, fulfilling lives. It all begins with knowing your pulse—a small step that can make a life-changing difference.

This Global AF Aware Week, join us to Reset the Rhythm and Reclaim Your Life: https://loom.ly/V9iV6UA

11/27/2025

Women face unique risks for blood clots, especially during pregnancy, after childbirth, or when using hormonal birth control

These risks are manageable as long as you know the warning signs: leg pain, swelling, or sudden shortness of breath and talk to your doctor about your risk.

 : Carly Weinstein has transformed her blood clot journey into powerful action by literally walking across New York City...
11/25/2025

: Carly Weinstein has transformed her blood clot journey into powerful action by literally walking across New York City to make sure others are aware of this condition. That is extraordinary advocacy 💕💪

Carly’s dedication and heart leave us in awe. Her journey is proof that one person’s voice can create real change.

Thank you, Carly, for being an incredible champion for

Want the latest thrombosis news, prevention tips and research breakthroughs?Subscribe to The Beat, our monthly World Thr...
11/24/2025

Want the latest thrombosis news, prevention tips and research breakthroughs?

Subscribe to The Beat, our monthly World Thrombosis Day newsletter. From expert insights to upcoming events, you’ll get everything you need to stay one step ahead in the fight against blood clots. Sign up today: bit.ly/4nPko50

11/22/2025

A blood clot diagnosis can leave you searching for answers and reassurance.

That’s where we come in.

Join us Tuesday, December 9 at 7 p.m. ET for a special PEP Talk designed for those who are newly diagnosed or still learning about life after a clot.

Our featured medical expert, Diane Wirth, MSN, ANP-BC, CACP, and member of NBCA’s Medical & Scientific Advisory Board, will guide you through what to expect and how to move forward with confidence.

We’ll talk about:

✔️ Blood Clots 101: Understanding your diagnosis and early recovery

✔️ Self-care and prevention: Steps to manage your condition and reduce risk

✔️ Navigating care: Working effectively with your healthcare team

Whether you’re beginning your recovery or supporting someone who is, this session offers practical information and peace of mind.

👉 Register: bit.ly/Dec2025PEPTalk

Take the   feedback survey today! Thank you to our entire community for your outstanding efforts in raising awareness of...
11/21/2025

Take the feedback survey today! Thank you to our entire community for your outstanding efforts in raising awareness of blood clots on World Thrombosis Day. From information stands and community walks, to educational webinars and fundraising events, partners around the world highlighted the importance of thrombosis awareness.

Now, we want to hear from you! Please take five minutes to complete our WTD post-campaign survey and share your insights about what worked, what you need and how we can improve. Whether you shared your story or hosted an event, your perspective matters and will help amplify our collective impact.

The brief survey provides insights that will benefit the entire blood clot awareness community. As a token of our appreciation, one survey participant will be selected at random to receive a $100 (USD) Amazon gift card. Take the survey here: bit.ly/4r9U3kM

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