“…VTE was defined as deep vein thrombosis (DVT), pulmonary embolism (PE), or both. A variety of factors contribute to thrombotic risk in tumor patients, apart from patient-specific factors (age, sex, ethnicity, high body mass index, platelet count, platelet distribution width, hyperlipidemia, ABO blood type, comorbidities) [4][5][6][7][8][9][10] and tumor-specific factors (tumor type, anatomical location, tumor load, gene mutations, tumor stage, and pathologic grade) [1,7,8,11,12]; therapeutic measures, such as chemotherapy, the use of red cell or platelet transfusions, high-risk surgery, indwelling catheter, invasive mechanical ventilation, total parenteral nutrition (TPN), and so on, constitute the other risk factors of VTE [4,8,13].…”