WHO Civil Society Working Group on NCDs Consensus Statement at the Multistakeholder Hearing for the Fourth UN High-level Meeting on Noncommunicable Diseases and Mental Health, 2 May 2025
02 May 2025
Louise Bannon, International Society on Thrombosis and Haemostasis (ISTH)
03 Apr 2019
Thrombosis is the formation of a blood clot in a blood vessel. The vessel may be any vein or artery as for example, in a deep vein thrombosis (venous) or a coronary artery (arterial). The clot itself is termed a thrombus. Once formed, a clot can slow or block normal blood flow, and even break loose and travel to an organ. A clot that travels to the circulation is called an embolism. Thrombosis is the often preventable underlying pathology of heart attack, thromboembolic stroke, and venous thromboembolism (VTE), the top three cardiovascular killers. This infographic provides an overview of thrombosis, specifically VTE.