What is it?

Reactive arthritis is an inflammation of the joint which is triggered by an infection of the intestines, genitals or urinary tract. It usually affects the knees, ankles and feet. Some of the bacteria which cause reactive arthritis are sexually transmitted like chlamydia and others are foodborne like shigella.

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Additional names

This group contains additional names:
- Reactive arthropathy

Signs & symptoms

Reactive arthritis symptoms may include joint pain and stiffness, conjunctivitis, frequent urination, discomfort during urination, prostate gland inflammation, cervix inflammation, enthesitis, swollen toes or fingers, rash, skin sores and low back pain.


Diagnosis of reactive arthritis is based upon findings in medical history, physical examination and blood tests. Also, a sample of fluid from the joint may be withdrawn to look for inflammation signs. X-ray of the joints may rule out other conditions.


Reactive arthritis treatment may include antibiotics, corticosteroids, topical steroids and physical therapy.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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Frequently asked questions
Can reactive arthritis occur after infections?
Is reactive arthritis a long-term condition?
Can people of all ages get reactive arthritis?

☝ The content of this answer is based solely on historical posts and comments generated by users on Alike. This tool is not a substitute for professional medical advice, and you should always consult with your physicians before making any changes to your medical care or treatment plan.

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