One of the most serious complications after total hip arthroplasty (THA) is venous thromboembolic (VTE) disease, which can consist of pulmonary embolism (PE) and/or deep vein thrombosis (DVT). According to Medicare data, the all-cause death rates in the first 90 days after primary and revision THA are 0.95% and 2.56%, respectively, with corresponding PE rates of 0.93% and 0.78%. All patients undergoing primary and revision THA, including patients with blood dyscrasias and coagulopathies, should receive VTE prophylaxis.