World Thrombosis Day, 13 Oct 2026 – Importance, Theme & History
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World Thrombosis Day is a global healthcare awareness event observed on the 13th of October every year to increase worldwide awareness about thrombosis, including its causes, risk factors, indications, and symptoms, as well as evidence-based treatment and prevention.
On this day, various national and international organisation, healthcare professionals, patient advocacy groups, and patients worldwide come together and conduct special events, webinars and educational forums that focus on reducing the burden of thrombosis, promoting education, awareness, and necessary actions for better prevention.
Importance of World Thrombosis Day (WTD)
Thromboembolism is a vascular disorder characterised by obstruction of blood vessels due to the formation of an embolus, which originates from a blood clot. The formation of a blood clot in a blood vessel is referred to as thrombosis. The vessel might be any vein or artery, as in deep vein thrombosis (venous) or coronary artery thrombosis (arterial).
A blood clot, once formed, can delay or stop normal blood flow and even break and travel to an organ. Thrombosis is the often-preventable underlying pathology of the top three cardiovascular killers such as venous thromboembolism (VTE), heart attack, and thromboembolic stroke.
Blood clots occur in both men and women of all ages, races, and ethnicities. Certain conditions and circumstances can raise the likelihood of forming a blood clot(s). Patients who receive anticoagulation treatment for venous thromboembolism are at a risk of 7.2 major bleeding events per 100 person-years, with a risk of 1.31 fatal bleeding events per 100 person-years. In case of major bleeding, the fatality rate is 13.4%.
The annual incidence of venous thromboembolism (VTE), which comprises deep vein thrombosis (DVT) and pulmonary embolism (PE), in children (1 in 1,00,000), in reproductive age (1 in 10,000), in later middle age (1 in 1000), and in the elderly (1 in 100). According to reports, the incidence of pulmonary embolism ranges from 29 to 48 per 1,00,000 person-years, while the incidence of deep vein thrombosis ranges from 45 to 117 per 1,00,000 person-years.
With one in every four individuals dying from thrombosis, also known as blood clots, World Thrombosis Day draws attention to the often-overlooked disease as an urgent and rising health problem.
World Thrombosis Day 2026 Theme
This year, 2026, the World Thrombosis Day theme is "From Head to Toe, Take Control: Prevent Thrombosis, Protect Your Health". This theme highlights the importance of understanding blood clot risks and taking preventive action to protect overall health. It encourages people to recognize warning signs and seek timely medical care to help prevent serious complications.
Year by year themes of World Thrombosis Day:
- World Thrombosis Day theme 2025: From Head to Toe, Take Control: Prevent Thrombosis, Protect Your Health
- World Thrombosis Day theme 2024: Move Against Thrombosis
- World Thrombosis Day theme 2023: Move Against Thrombosis
- World Thrombosis Day theme 2022: Eyes Open to Thrombosis
- World Thrombosis Day theme 2021: Eyes open to thrombosis
- World Thrombosis Day theme 2020: Eyes open to thrombosis
History of World Thrombosis Day (WTD)
In 2014, World Thrombosis Day was founded by the International Society on Thrombosis and Haemostasis (ISTH) to create a focused global awareness against thrombosis. Since then, every year, on the 13th of October, the World Thrombosis Day event is observed.
Preventive tips for blood clots (thrombus)
Preventing blood clots is vital for overall cardiovascular health and to reduce the risk of conditions such as deep vein thrombosis (DVT) and pulmonary embolism. The following are the general strategies that aid in preventing blood clots:
- Maintaining a healthy weight
- Staying active by doing exercise & yoga
- Staying hydrated
- Quitting smoking
- Wearing compression stockings
- Taking breaks during travelling
- Limiting sodium intake
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