Tennis Elbow or Lateral Epicondylitis is a condition when the outer part of the elbow becomes painful and tender, usually as a result of a specific strain, overuse, or a direct bang. Sometimes no specific cause is found. Tennis Elbow is similar to Golfer's Elbow which affects the other side of the elbow. Symptoms include: outer part of the elbow is painful and tender to touch. Movements of the elbow, and also movements which involve lifting, with the hand on top, hurt. Rest helps, with avoidance of the activities which over use the elbow.