The site of tennis elbow. Pulling of the forearm muscles at the point where they attach to the humerus causes tenderness on the outer side of the elbow.
Tennis elbow is pain and tenderness on the outside of the elbow and in the back of the forearm. Also called lateral epicondylitis, it is caused by inflammation of the tendon that attaches the muscles that straighten the fingers and wrist to the humerus (the upper-arm bone).
The treatment of tennis elbow consists of resting the arm, applying ice-packs, and taking analgesic drugs (pain-killers), or non-steroidal anti-inflammatory drugs (NSAIDs). Ultrasound treatment, injection of a corticosteroid drug, or surgery are sometimes needed.