Knee pain is one of the most common orthopaedic complaints. Performing a thorough physical examination of the knee is important for diagnosis and treatment. The exam involves inspection of gait, alignment, and deformities; palpation of bony landmarks and soft tissues for tenderness; and assessment of range of motion through active and passive movement. Specific tests evaluate the patellofemoral joint, test for intra-articular fluid, and stress the ligaments to identify injuries like ACL and PCL tears or meniscal damage. A complete physical exam aids in localizing the source of knee pathology.