Lateral epicondylitis (Tennis Elbow) is a frequently reported medical condition. Its results in considerable morbility and financial cost. The syndrome is seen mainly in those whose work involves repetitive movements of forearm and hand. It is reported that 7.4% of industrial workers and 40-50% of tennis players in USA are at some time affected by it. In 1981, over 1500 workers in Quebec made claims to the workers compensation board for this condition, generating a cost of 4442 canadian dollar per case and an average of 62 days of work lost. The statistics is provided by 1982, Province of Quebec, workman`s compensation board. Its treatment includes NSAIDS, many physiotherapy techniques, cost immobilization, orthosis, surgical operations and less conventional methods such as radiotherapy, acupuncture and vitamins. The aim of this article is to review the current literature, anatomy, sports specific biomechanics, physical examination, causes, types and rehabiliatation of lateral epicondylitis follow up and prevention. © 2011 IGJPS. All rights reserved.