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.

If you have experienced two or more miscarriages, talk to your doctor about thrombophilia testing. Inherited blood clot ...
03/30/2026

If you have experienced two or more miscarriages, talk to your doctor about thrombophilia testing. Inherited blood clot disorders can contribute to recurrent pregnancy loss, and early diagnosis opens the door to prevention strategies for future pregnancies.

Get the facts at https://bit.ly/WTDWomen.

03/29/2026

Be sure to join VascuLearn’s upcoming Ask the Expert session for clear, practical insights into why these medications are prescribed, how clinicians balance clotting and bleeding risks, and what you should know about their safety.

📅 Tuesday, Mar 31 7:00 PM - 8:00 PM EDT

Reserve your spot here: bit.ly/4rQ5ltI

A woman's blood clot risk does not stay the same. It shifts with hormones, pregnancy, age and health decisions across a ...
03/27/2026

A woman's blood clot risk does not stay the same.

It shifts with hormones, pregnancy, age and health decisions across a lifetime. World Thrombosis Day 2026 is committed to meeting women where they are, at every stage.

Get the full picture at https://bit.ly/WTDWomen.

Blood clots are largely preventable when women know their risks. This October, World Thrombosis Day 2026 is dedicating a...
03/25/2026

Blood clots are largely preventable when women know their risks.

This October, World Thrombosis Day 2026 is dedicating an entire global campaign to women's health, education and empowerment. Follow along and learn more at https://bit.ly/WTDWomen.

New moms, the first three months after delivery are when blood clot risk is highest. Do not ignore leg swelling, calf pa...
03/24/2026

New moms, the first three months after delivery are when blood clot risk is highest. Do not ignore leg swelling, calf pain or tenderness, skin discoloration, warmth or sudden shortness of breath. These are warning signs.

Seek care immediately and visit WorldThrombosisDay.org.

Have recent headlines about blood thinners and bleeding risks left you feeling uncertain? Join us for VLN's upcoming Ask...
03/23/2026

Have recent headlines about blood thinners and bleeding risks left you feeling uncertain? Join us for VLN's upcoming Ask the Expert session for clear, practical insight into why these medications are prescribed, how clinicians balance clotting and bleeding risks, and what you should know about their safety. This expert-led session will end with a live Q&A so you can ask your questions directly!

Empower yourself with knowledge, reserve your spot here: bit.ly/4rQ5ltI

From pregnancy to menopause, birth control to postpartum, women face blood clot risks that are often misunderstood or ov...
03/23/2026

From pregnancy to menopause, birth control to postpartum, women face blood clot risks that are often misunderstood or overlooked. Medically accurate, expert-reviewed information is waiting for you.

Visit https://bit.ly/WTDWomen today.

Women’s experiences with blood clots are powerful, personal and too often unheard. This month, in recognition of Interna...
03/22/2026

Women’s experiences with blood clots are powerful, personal and too often unheard. This month, in recognition of International Women’s Day, World Thrombosis Day is inviting women around the world to share their experiences through .

This new initiative builds on with questions designed specifically to capture what it means to experience a blood clot as a woman.

When you share your story, you help create a global network of lived experience that can empower other women to recognize symptoms, seek care and feel supported.

💜 Submit your and help ensure no woman faces a blood clot alone: https://bit.ly/4b6xt5h

Three critical times. One urgent message. Hormonal contraception, pregnancy and postpartum, and menopause hormone therap...
03/20/2026

Three critical times. One urgent message. Hormonal contraception, pregnancy and postpartum, and menopause hormone therapy each carry distinct blood clot risks that women and their providers need to discuss. World Thrombosis Day 2026 is making sure no woman is left without this knowledge. Learn more at https://bit.ly/WTDWomen.

03/19/2026

Blood clots don’t come with an age requirement. They don’t wait for retirement. They don’t discriminate by decade. Understanding risk factors can make the difference between early action and a missed warning sign.

Learn more at getouttheclot.com

The questions women need answered. Now. Is my birth control raising my clot risk? Am I protected during pregnancy? What ...
03/18/2026

The questions women need answered. Now.

Is my birth control raising my clot risk? Am I protected during pregnancy? What does menopause mean for my health? These are questions every woman deserves answers to.

Find medically accurate information at https://bit.ly/WTDWomen.

A history of blood clots does not mean your contraceptive options are limited. Hormone-free methods like the copper IUD ...
03/17/2026

A history of blood clots does not mean your contraceptive options are limited. Hormone-free methods like the copper IUD are effective alternatives for women at higher clot risk. Ask your provider what is right for you and visit WorldThrombosisDay.org to learn more.

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