Reactive Arthritis

Basics

Syndrome classically includes triad of conjunctivitis, urethritis, arthritis
Also known as “Reiter syndrome,” although the eponym has fallen out of favor:
- Typically taught as the syndrome of “can't see, can't pee, can't climb a tree”

Exact incidence difficult to determine because of lack of standardized diagnostic criteria
Typically occurs after infection with gastrointestinal or genitourinary pathogens
- GI:
  - Salmonella, Shigella, Campylobacter, Yersinia, Clostridium difficile
- GU:
  - Chlamydia trachomatis (most common cause), Neisseria gonorrhoeae
Also described after upper respiratory infections, UTIs, BCG treatment for bladder carcinoma
Peak onset during third decade

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