A tendonitis of the elbow from excessive, repetitive, or forceful movements of the wrist Thats right, muscle-tendon units moving the wrist originate at the elbow Lateral epicondylitis occurs at the origin of the lateral epicondyle, the major bony prominence on the outside of the elbow This usually occurs from excessive extension of the wrist or holding the wrist up in extension as a static posture It can also be caused by repeatedly creating large divots in the grass while playing golf, and for this reason is also called "golfers elbow " The pain of medial epicondylitis is located where the wrist flexors originate at the medial epicondyle, the major bony prominence at the medial or inner aspect of the elbow This is also known as "tennis elbow" since forceful overhand shots place stress on this tendon