Tennis Elbow (Lateral Epicondylitis) and Golfer’s Elbow (Medial Epicondylitis) refer to pain in the elbow joint. As the names suggests, Epicondylitis, is divided into two main categories, lateral and medial. Lateral Epicondylitis is when pain occurs on the outside of the elbow. Though frequently associated with racquet sports such as tennis, it can occur from any repetitive motion or through over use. Medial Epicondylitis is when pain occurs on the inside of the elbow. Often times it is found in golfers as a result of the way they swing a club, however it can be caused by many actions that move the elbow in a similar fashion such as baseball or climbing.