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 [email protected].

Blood clot risk can change throughout a woman’s life, and knowing when risk may be higher can help women take action.The...
09/10/2026

Blood clot risk can change throughout a woman’s life, and knowing when risk may be higher can help women take action.

The 2026 World Thrombosis Day campaign is putting a spotlight on the relationship between women’s health and thrombosis, including risk associated with hormonal changes, pregnancy, the postpartum period and menopause.

For example, pregnancy can increase the risk of blood clots approximately four- to five-fold, with risk remaining particularly elevated during the first six weeks after childbirth.

“Women’s health and blood clot risks are closely connected, but the relationship is often overlooked,” said James Douketis, M.D., Chair of the World Thrombosis Day campaign. “By bringing greater attention to blood clot risk across an individual's lifespan, we can help women and their healthcare professionals recognize important risk factors, understand when risk may be higher and take action to prevent serious complications.”

Recognized annually on October 13, brings together thousands of partners across 123 countries to increase awareness of blood clot risk factors, signs, symptoms and prevention.

This year, we’re encouraging women to know their personal risk, recognize changes throughout life and start conversations with their healthcare professionals.

🔗 Read the full announcement: https://bit.ly/4reiPAL

Not all blood clots form deep inside the body. Superficial vein thrombosis happens when a blood clot forms in a vein clo...
09/10/2026

Not all blood clots form deep inside the body. Superficial vein thrombosis happens when a blood clot forms in a vein close to the surface of the skin. Signs can include pain or tenderness, warmth, hardness in the vein and red or discolored skin around the affected area.

While these clots are often less serious than deep vein thrombosis (DVT), they can sometimes extend into deeper veins—so symptoms shouldn’t be ignored.

This , learn about the different ways thrombosis can affect the body from head to toe. ❤️💙

📊 The numbers tell a powerful story about thrombosis.From the global impact of blood clots to the risks associated with ...
09/09/2026

📊 The numbers tell a powerful story about thrombosis.

From the global impact of blood clots to the risks associated with hospitalization, understanding the data can help us make a stronger case for awareness, prevention and action.

Our latest article breaks down key statistics every blood clot advocate should know and share ahead of on October 13.

Use the numbers. Start a conversation. Share a resource. Help more people understand why blood clot awareness matters.

👉 Read the article and explore shareable resources: bit.ly/4iRfpl8

Blood clots can affect anyone, but women may face unique risks at different stages of life. ❤️Hormonal changes, pregnanc...
09/09/2026

Blood clots can affect anyone, but women may face unique risks at different stages of life. ❤️

Hormonal changes, pregnancy, birth control and other hormone-related treatments can all influence blood clot risk. Understanding these connections can help you ask the right questions, recognize potential warning signs and make informed decisions about your health.

This , take time to learn about your personal risk and talk with your healthcare provider about any questions or concerns.

Know your risk. Know the signs. Take control of your health.

This  , your voice can make an impact. ❤️💙Whether you’re a patient, caregiver, healthcare professional or policymaker, t...
09/08/2026

This , your voice can make an impact. ❤️💙

Whether you’re a patient, caregiver, healthcare professional or policymaker, there’s a role for everyone in raising awareness, encouraging prevention and supporting people affected by thrombosis.

Every conversation, every resource shared and every action taken helps move us toward a world with greater awareness and fewer lives impacted by blood clots.

How will you take action this October 13? 🌎

09/07/2026
09/07/2026

💙 Help Us Light Up the UK for World Thrombosis Day! 💙

On 13th October, we're asking communities across the UK to help shine a light on thrombosis awareness.

Illuminating a local building, landmark, monument, hospital, community centre, business, or even your own home is a powerful way to raise awareness of the risks of blood clots and the impact they have on millions of people worldwide.

✅ Choose a visible location in your community
✅ Contact the building owner or relevant authority for permission
✅ Download and use our email template to support your request
✅ Once confirmed, let us know by emailing [email protected]

Then, take photographs and videos of your illuminated building and share them across your social media channels, website, and with local media outlets to help spread the message.

For more information and resources, visit our website: 🔗 https://thrombosisuk.org/world-thrombosis-day/

Don't forget to tag Thrombosis UK and World Thrombosis Day in your posts.
Together, let's light up the whole of the UK this World Thrombosis Day and raise awareness of thrombosis and blood clots. 💙

🫶 Blood clot awareness grows when people share what they know. What lesson from your own experience could help someone e...
09/07/2026

🫶 Blood clot awareness grows when people share what they know. What lesson from your own experience could help someone else?

Share in the comments below!

📣A meaningful new resource from our community: Chris Love, a Physician Associate working in Haemostasis and Thrombosis i...
09/06/2026

📣A meaningful new resource from our community: Chris Love, a Physician Associate working in Haemostasis and Thrombosis in Leicester, created ClotCard after a difficult period in his own family, when his mother was diagnosed with two cancers within a matter of months.

Looking for a positive place to channel the fear and uncertainty, Chris built the app independently in his own time with one goal in mind: helping people who have experienced a blood clot feel more informed, confident and supported as they move forward.

As Chris puts it, having a blood clot shouldn’t define the rest of someone’s life. Check out this app and let us know what you think!

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