Abstract:Thrombosis disease is a common complication of cancer. Researches show that venous thromboembolism (VTE) can increase the mortality rate of patients with cancer. Tissue factor (TF) and cancer procoagulant (CP) and other pathological factors are related to VTE. VTE risk factors in cancer patients can be grouped into 3 general categories: patientrelated factors, cancer-related factors and treatmentrelated factors. Assessment of risk factors and early prevention can reduce the incidence of VTE. Immediate treatment and chronic therapy should be performed immediately after the diagnosis of VTE.

Key words:Neoplasms,Venous thrombosis