Swelling and Tenderness The phrase arthritis suggests active joint inflammation. This can lead to swelling on the afflicted location, our doctors may also check for heat, redness or soreness in the region. Problems in relocating the knee or doing day-to-day activities due to pain, stiffness, or instability warrants Expert evaluation. https://www.theorthopaedicandpainpractice.com/treatment-for-swollen-arthritic-knee/