References: A number of factors among cancer patients further increase the VTE risk: 1. Timp JF, Braekkan SK, Versteeg HH, Cannegieter SC. Epidemiology of cancer-associated venous thrombosis. Blood. 2013 Sep 5;122(10):1712-23. Chemotherapy: 1. Fuentes HE, Tafur AJ, Caprini JA. Cancer-associated thrombosis. Dis Mon 2016;62(5):121-58. 2. Oppelt P, Betbadal A, Nayak L. Approach to chemotherapy-associated thrombosis. Vascular Medicine. 2015 Apr;20(2):153-61. Comorbidities: 1. Donnellan E, Khorana AA. Cancer and Venous Thromboembolic Disease: A Review. Oncologist. 2017 Feb 1;22(2). Age & gender: 1. Cohen AT, Katholing A, Rietbrock S, Bamber L, Martinez C. Epidemiology of first and recurrent venous thromboembolism in patients with active cancer. Thrombosis and haemostasis. 2017 Jan;117(01):57-65 Surgery: 1. Trinh VQ, Karakiewicz PI, Sammon J, Sun M, Sukumar S, Gervais MK, Shariat SF, Tian Z, Kim SP, Kowalczyk KJ, Hu JC. Venous thromboembolism after major cancer surgery: temporal trends and patterns of care. JAMA surgery. 2014 Jan 1;149(1):43-9 2. Tikkinen KA, Agarwal A, Craigie S, Cartwright R, Gould MK, Haukka J, Naspro R, Novara G, Sandset PM, Siemieniuk RA, Violette PD. Systematic reviews of observational studies of risk of thrombosis and bleeding in urological surgery (ROTBUS): introduction and methodology. Systematic reviews. 2014 Dec;3(1):150 Immobility: 1. Fuentes HE, Tafur AJ, Caprini JA. Cancer-associated thrombosis. Dis Mon 2016;62(5):121-58 Metastasis: Obesity: 1. Farge D, Bounameaux H, Bauersachs RM, Brenner B. Women, thrombosis, and cancer: A gender-specific analysis. Thrombosis research. 2017 Mar 1;151:S21-9