Knee Pain Knee pain can be caused by : Knee Arthritis (Osteoarthritis, Gout, Pseudogout, Rheumatoid Arthritis and others) Knee Bursitis Baker cyst complication Patellofemoral Syndrome and Iliotibial Band Syndrome Knee trauma Knee Osteoarthritis: This this the most common cause of arthritis This is the leading cause of disability in the US affecting nearly 50% of …