TF and COVID-19: The outbreak of COVID-19 has shifted researchers’ focus towards immunothrombosis, as it has been demonstrated to play a significant role in the disease progression and adverse outcomes in COVID-19 patients.[17] In recent years, with an increasingly in-depth study of immunothrombosis in COVID-19, the roles of NETs, inflammatory factors, the complement system, endothelial system, and TF in immunothrombosis have been more clearly elucidated.[4,18]