Assessment of the knee pain begins with a thorough history, then moves to a physical examination that includes a gross inspection,palpation, and evaluation for alignment, tenderness, and range of motion. Specialized tests include the Lachman, posterior drawer, and Ober tests. Roentgenography is the primary imaging study needed; MRI is often chosen for when surgery is being considered. Acute injuries having to do with no hemarthrosis or mechanical symptoms can be cured with rest, icing, NSAIDs, and exercise. Physical therapy helps heal quadriceps atrophy. Fracture, locking, or suspicion of infection calls for referral, just like repeated patellar dislocation. Less sever problems can be cured with NSAIDs and use of an assistive device as much as it needs to be needed.