Advocacy tools and partnership resources
Thrombosis awareness and women's health advocacy start with the right tools and the right partners. This page is designed for healthcare professionals, patient advocates and organizations committed to improving outcomes for women with bleeding and clotting disorders.
Access World Thrombosis Day resources, campaign toolkits, social media assets and speaking points, and explore partnership opportunities with ISTH to extend your reach and deepen your impact globally.
World Thrombosis Day
World Thrombosis Day, held annually on Oct. 13, is a global campaign led by ISTH that unites more than 4,000 partner organizations across 190 countries to raise awareness of the life-threatening risks of blood clots. In 2026, the campaign turns its focus to women's health, spotlighting how thrombosis and hemostasis conditions uniquely affect women across all stages of life, from menstruation and pregnancy to menopause and beyond.
.png){kind=logo}
World Hemophilia Day
World Hemophilia Day, observed every April 17, raises global awareness of hemophilia and other inherited bleeding disorders, including those that disproportionately affect women and girls. While hemophilia is often thought of as a condition that only affects males, women can be carriers and may experience significant bleeding symptoms, including heavy menstrual bleeding, postpartum hemorrhage, and prolonged bleeding after surgery or injury. This day serves as an important reminder that women with bleeding disorders deserve timely diagnosis, specialized care, and access to hemophilia treatment centers and hematology services.
Media toolkits and talking points
The ISTH has developed a comprehensive set of media materials and talking points to help partners, healthcare professionals and advocates communicate the critical connection between thrombosis and women's health.
From press release templates and key statistics to evidence-based messaging on bleeding and clotting disorders, these ISTH-created resources equip spokespeople and communications teams with the tools needed to drive meaningful media coverage and public awareness.
Partner with the ISTH
ISTH works collaboratively with societies, organizations and advocates around the world to advance women's health as it relates to thrombosis and haemostasis. Through shared resources, joint initiatives and coordinated awareness efforts, we believe that partnership is essential to improving outcomes for women with bleeding and clotting disorders globally. If your organization is interested in working with us, we'd love to hear from you — contact us to explore partnership opportunities.