Since 1884 the cause for venous thromboembolic disease has been described as the formation of thrombi and its embolism and includes deep vein thrombosis and pulmonary thromboembolism (PE). Surgical procedures, regardless of the speciality that performs them, have been considered as a risk factor for the development of venous thromboembolism due to endothelial injury and the stasis that occurs during the surgical procedure and the postoperative period. It has been estimated that patients in immediate postoperative have a risk 70 times greater of developing venous thromboembolism than the general population. And in case of developing one, it exposes those who suffer it to greater morbimortality, longer hospital stay and its subsequent increased costs to the Healthcare System. For this reason, scores have been devised to detect the thromboembolism risk to establish prophylactic measures for the prevention of these events. The current score with the greatest support of scientific evidence is the Caprini score. However, it is very detailed thus its length makes it costly and restricts its use. There are shorter scales with the same objective (to determine the thromboembolism risk in surgical patients) albeit with no studies to evaluate the concordance between these scales. This study aims to evaluate the concordance among these scores in order to find the most appropriate scale to evaluate thromboembolism risk in our setting.