[Annual review of venous thromboembolism in 2021].

In the past year, significant progress has been made in the field of venous thromboembolism (VTE) including risk assessment and anticoagulation prevention, diagnostic strategies and model exploration, new drug development and disease management. Particularly, major breakthroughs have been made in the prevention of VTE with FXI inhibitors and the prevention of novel coronavirus pneumonia with coagulation alterations and anticoagulation interventions. Here, we reviewed the progress and achievements in the field of VTE in the past year, aiming to provide evidence and ideas for the diagnosis, treatment and future studies of VTE.