The infection usually occurs days to weeks before the onset of joint pain. In some cases a preceding infection may only be identified with laboratory testing.
Symptoms include joint pain and stiffness, most commonly in the knees, ankles, and feet. In a type of reactive arthritis called Reiter's syndrome, there may be discomfort during urination as well as eye inflammation.
If needed, treatment includes anti-inflammatory medication or steroids.
Consult a doctor for medical advice
Sources: Mayo Clinic and others.
Fewer than 20,000 US cases per year
Treatable by a medical professional
Requires a medical diagnosis
Lab tests or imaging often required
Short-term: resolves within days to weeks