World Thrombosis Day - October 13
Fri, Oct 13, 2023

World Thrombosis Day

World Thrombosis Day is celebrated around the world on October 13th. Worldwide, diseases associated with thrombosis are the cause of one in four deaths. In the US alone, blood clots affect up to 900 people each year, and approximately 300 of them will die. For example, it is worth remembering that the number of deaths from blood clots in a year exceeds the number of deaths from breast cancer, car accidents, and even AIDS in the same time period.


On October 13, 2014, the first World Thrombosis Day was held, the purpose of which was to draw attention to a rather serious problem. This is an educational project led by the International Society for Thrombosis and Hemostasis (ISTH). Control is carried out by specialists in the field of medicine and public health. The main goal of World Thrombosis Day is to raise global awareness of thrombosis, its causes, symptoms, and risk factors. The ultimate goal is to reduce the number of people who die and become disabled due to this disease.

The World Health Assembly aims to reduce the overall rate of premature deaths due to noncommunicable diseases by 25% by 2035.

Interesting facts

  • The first documented case of thrombosis was in 1271.
  • In 1600, Mercurialis noticed blood clots that have arisen in blood vessels at normal body temperature.
  • In 1628, a physician from England, William Harvey, introduced the first study of the circulation.

How to take part

At World Thrombosis Day, learn more about thrombosis, talk to doctors about this topic. If you have survived a thrombosis, then share your story on social media using the hashtag #WorldThrombosisDay – your story and experience can help someone else. On this day, you can also take part in thematic events – webinars and seminars with medical experts, watch interviews with people who have experienced thrombosis.

When is World Thrombosis Day celebrated in 2023?

World Thrombosis Day is observed on October 13 each year.


Weekday Month Day Year
Friday October 13 2023
Sunday October 13 2024
Monday October 13 2025
Tuesday October 13 2026