Complications following hip arthroplasty have a wide variation and range in incidence from 1.1% for pulmonary embolism to over 70% for infrapopliteal deep vein thrombosis. Recognition of the risk factors and all of the possible types of complications places the surgeon in a better position to detect such complications and formulate a plan to treat them. This article documents some ofthe complications that can occur during or after surgery following hip surgery. These complications are stratified as systemic and procedure specific.