What is reactive arthritis (ReA)?

Updated: Dec 24, 2020
  • Author: Carlos J Lozada, MD; Chief Editor: Herbert S Diamond, MD  more...
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Answer

Reactive arthritis (ReA), formerly termed Reiter syndrome, is an autoimmune condition that develops in response to an infection. It has been associated with gastrointestinal (GI) infections with Shigella, Salmonella, Campylobacter, and other organisms, as well as with genitourinary (GU) infections (especially with Chlamydia trachomatis). [1] Cases of ReA following COVID-19 infection have been reported. [2, 3, 4, 5]

See the image below.

Painful erosions on fingers in patient with reacti Painful erosions on fingers in patient with reactive arthritis.

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