The knee is the largest joint in the body. Knee pain is one of the most common musculoskeletal complaint that brings people to their doctor. With today's increasingly active society, the number of knee problems is increasing. The Knee pain has a wide variety of specific causes and treatments. Knee pain can be caused by a sudden injury, an overuse injury, or by an underlying condition, such as arthritis. Treatment will vary depending on the cause. Symptoms of knee injury can include pain, swelling, and stiffness. Let AZ Pain Centers help treat your knee pain. Schedule a consultation today.