Understanding the Condition
What Is Tennis Elbow?
Tennis elbow, or lateral epicondylitis, is degeneration and micro-tearing of the tendons that attach your forearm extensor muscles to the bony prominence on the outer elbow (lateral epicondyle). Despite the name, most sufferers have never touched a racquet — it's the repetitive wrist and finger extension involved in typing, mouse use, tool gripping, and lifting that drives the condition. Left untreated, the tendon degenerates rather than heals, transforming a manageable strain into a chronic, debilitating problem.