Lateral Epicondylitis (Tennis Elbow)
Tennis elbow is an injury to the muscles and tendons on the outside (lateral aspect) of the elbow that results from overuse or repetitive stress. Injury is most often caused by overuse of the extensor tendons of the forearm, particularly the extensor carpi radialis brevis. Pain occurs to the lateral aspect of the elbow and/or forearm muscles generally during or directly after activity.