The pain in tennis elbow is located on which part of the elbow?

• A. Medial epicondyle
• B. Capitellum
• C. Olecranon
• D. Lateral epicondyle

Answer: (D)

Tennis elbow pain localizes to the lateral epicondyle, the outer bony prominence of the humerus where the common extensor tendon attaches (notably the extensor carpi radialis brevis). Repetitive wrist extension and gripping load stress this tendon, leading to tendinopathy and tenderness at that specific site.

Context helps: pain at the medial epicondyle would point to golfer’s elbow from the common flexor tendon, while the olecranon is the tip of the elbow where bursitis or fracture can cause pain, and the capitellum is a joint surface, not a tendon origin. Therefore, the pain in tennis elbow is best explained by involvement of the lateral epicondyle.