Lateral epicondylitis is a condition primarily occurring in adults between the ages of 30 and 50 years. Although the name “lateral epicondylitis” implies an inflammatory reaction, histologic evidence suggests that this condition is more reflective of a chronic angiofibroblastic tendinosis. While many theories exist as to the true cause of lateral epicondylitis, no single explanation is sufficient to elucidate the true cause. There are many risk factors for developing lateral epicondylitis, and one should not falsely assume that only tennis players are susceptible.