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What is Thrombosis?

Thrombosis is the formation of a blood clot, known as a thrombus, within a blood vessel causing a partial or total obstruction; it prevents blood from flowing normally through the circulatory system. When the blood clot flows through the body, it can harm important organs such as the brain, heart, lungs, or leg arteries. When it blocks blood flow, serious health issues can arise, such as stroke, heart attack, or pulmonary embolism.

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Educational Resources

NATF is dedicated to providing patients with the information they need to continue a healthy life after being diagnosed with a blood clot. From videos with experts addressing patient questions, to printable materials and further resources, NATF provides patients with the tools they need to make informed healthcare decisions.

Upcoming Patient Events

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Sep 26
Boston Blood Clot Support Group – September
Oct 4
Online Support Group – October
Oct 18
2017 Celebration of Gratitude

Lynn Jennings

Lynn Jennings is an Olympic medalist and a nine-time champion of the USA Cross Country Championships. One of the greatest female American runners, she is a passionate athlete who now…
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Mark Lindsay

Mark Lindsay is a passionate businessman who owns Boston Boat Works. He experienced a DVT 12 years ago, but that didn’t stop him from pursuing what he loves: sailing and…
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Nancy Marriott

On September 13th, just two days before her 70th birthday, Nancy Marriott was rushed to the emergency room in Boulder, Colorado with extreme shortness of breath.  She had been near…
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Patient Support

After experiencing a blood clot, it’s normal to have a lot of questions. Many people are left feeling confused about why this happened to them and anxious about it happening again. NATF is here to be be a support system. We are proud to offer a Boston-based in-person support group, as well as an online support group.

Support Groups

Clinical Trials

Participating in a clinical trial can be a great way to get involved in the research being done to learn more about thrombosis and similar other health issues.

Clinical Trials

Join NATF in the fight against blood clots. Donate today.

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