Introduction: Venous thrombo-embolism (VTE), which consists of deep vein thrombosis (DVT) and pulmonary embolism, is a potentially fatal condition. According to Western literature, DVT of lower limb veins is one of the most common complications following surgeries for lower limb. Few studies have been published from India on the subject and little is known about the true incidence of the DVT. Complications of DVT carry high mortality and morbidity. Thus, it is important to understand every aspect of DVT for which it is advisable to determine incidence of DVT by using proper diagnostic tools which have high sensitivity and specificity.