Reactive arthritis

Reactive arthritis is a form of arthritis that produces pain swelling redness and heat in the joints. It is one of a family of arthritic disorders affecting the spine. It commonly involves the joints of the spine and the sacroiliac joints where the spine attaches to the pelvis.
== Symptoms ==
Signs and symptoms include joint pain and stiffness, most commonly in the knees, ankles, and feet. In cases of reactive arthritis, there may be discomfort during urination, due to urethritis, and eye inflammation.
Category:Bones
Category:Skeletal system
Category:Inflammation
Category:Syndromes