The term tennis elbow is not a very good term because you don't have to play tennis to have this condition. Pain is located on the outside of the arm just at and below the elbow joint. Pain and inflammation is located on the opposite side of the elbow. In tennis, lateral epicondylitis usually occurs due to the poor backhand stroke technique of the average club player. Medial epicondylitis mainly occurs in the expert player who has a defect in their spinning technique during their performance of the American twist serve.
Symptoms usually develop insidiously and tend to get progressively worse over time.
Tenderness is localized on the bony prominence along the outside of the elbow- the lateral epicondyle. Pain can occur when shaking hands, turning knobs, or lifting a suitcase. There is seldom visible bleeding beneath the skin that look like blue or purple patches called, ecchymosis. Weakness of various muscles in shoulder, forearm, and wrist. Decrease in range of movement and flexibility in the wrist.