Reactive arthritis: Symptoms, risk factors, and treatment
Written by Danielle DresdenReviewed by Suzanne Falck, MD, FACP
Last reviewed: Sun 2 July 2017
Reactive arthritis, also known as Reiter's syndrome, is a painful form of inflammation that can cause swelling, heat, and redness in the feet, ankles, knees, and back.
It is considered a form of spondyloarthritis, which is a general term for inflammatory diseases that attack the places where ligaments and tendons connect muscles to the bones and joints.
One of the most notable characteristics of this condition is that it can also affect the eyes, bladder, and urethra.
Inflammation is the primary symptom of reactive arthritis, and most often it flares up in the urogenital tract, the joints, and the eyes.
http://www.medicalnewstoday.com/articles/318187.php