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Reactive arthritis

Reiter syndrome; Post-infectious arthritis

Reactive arthritis is a type of arthritis that follows an infection. It may also cause inflammation of the eyes, skin and urinary and genital systems.

Causes

The exact cause of reactive arthritis is unknown. However, it most often follows an infection, but the joint itself is not infected. Reactive arthritis most often occurs in men between the ages of 20 and 40, although it does sometimes affect women. It may follow an infection in the urethra after unprotected sex. The most common bacteria that cause such infections is called Chlamydia trachomatis. Reactive arthritis can also follow a gastrointestinal infection (such as food poisoning). In up to one half of people thought to have reactive arthritis, there may be no infection. It is possible that such cases are a form of spondyloarthritis.

Certain genes may make you more likely to get this condition.

The disorder is rare in young children, but it may occur in teenagers. Reactive arthritis may occur in children ages 6 to 14 after Clostridium difficile gastrointestinal infections.

Symptoms

Urinary symptoms will appear within days or weeks of an infection. These symptoms may include:

  • Burning when urinating
  • Fluid leaking from the urethra (discharge)
  • Problems starting or continuing a urine stream
  • Needing to urinate more often than normal

A low fever along with eye discharge, burning, or redness (conjunctivitis or "pink eye") can develop over the next several weeks.

Infections in the intestine may cause diarrhea and abdominal pain. The diarrhea may be watery or bloody.

Joint pain and stiffness also begin during this time period. The arthritis may be mild or severe. Arthritis symptoms may include:

  • Heel pain or pain in the Achilles tendon
  • Pain in the hip, knee, ankle, and low back
  • Pain and swelling that affects one or more joints

Symptoms may include skin sores on the palms and soles that look like psoriasis. There may also be small, painless ulcers in the mouth, tongue, and penis.

Exams and Tests

Your health care provider will diagnose the condition based on your symptoms. A physical exam may show signs of conjunctivitis or skin sores. All symptoms may not appear at the same time, so there may be a delay in getting a diagnosis.

You may have the following tests:

  • HLA-B27 antigen
  • Joint x-rays
  • Blood tests to rule out other types of arthritis such as rheumatoid arthritis, gout, or systemic lupus erythematosus
  • Erythrocyte sedimentation rate (ESR)
  • Urinalysis
  • Culture of stool if you have diarrhea
  • Urine tests for bacterial DNA such as Chlamydia trachomatis
  • Aspiration of a swollen joint

Treatment

The goal of treatment is to relieve symptoms and treat the infection that is causing this condition.

Eye problems and skin sores do not need to be treated most of the time. They will go away on their own. If eye problems persist, you should be evaluated by a specialist in eye disease (ophthalmologist).

Your provider will prescribe antibiotics if you have an infection. Nonsteroidal anti-inflammatory drugs (NSAIDs) and pain relievers may help with joint pain. If a joint is very swollen for a long period of time, you may have corticosteroid medicine injected into the joint.

If arthritis continues in spite of NSAIDs, sulfasalazine or methotrexate may be helpful. Finally, people who do not respond to these medicines may need anti-tumor necrosis factor (TNF) biologic agents such as etanercept (Enbrel) or adalimumab (Humira) to suppress the immune system.

Physical therapy can help ease the pain. It can also help you move better and maintain muscle strength.

Outlook (Prognosis)

Reactive arthritis may go away in a few weeks, but it can last for a few months and require medicines during that time. Symptoms may return over a period of years in up to one half of the people who have this condition.

Rarely, the condition can lead to abnormal heart rhythm or problems with the aortic heart valve.

When to Contact a Medical Professional

See your provider if you develop symptoms of this condition.

Prevention

Avoid infections that can bring on reactive arthritis by practicing safe sex and avoiding things that can cause food poisoning.

Open References

References

Babu TM, Urban MA, Augenbraun MH. Urethritis. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 107.

Carter JD, Hudson AP. Reactive arthritis. In: Firestein GS, Budd RC, Gabriel SE, Koretzky GA, McInnes IB, O'Dell JR, eds. Firestein & Kelley's Textbook of Rheumatology. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 81.

Horton DB, Strom BL, Putt ME, Rose CD, Sherry DD, Sammons JS. Epidemiology of clostridium difficile infection-associated reactive arthritis in children: an underdiagnosed, potentially morbid condition. JAMA Pediatr. 2016;170(7):e160217. PMID: 27182697 pubmed.ncbi.nlm.nih.gov/27182697/.

Link RE, Tang N. Cutaneous diseases of the external genitalia. In: Partin AW, Dmochowski RR, Kavoussi LR, Peters CA, eds. Campbell-Walsh-Wein Urology. 12th ed. Philadelphia, PA: Elsevier; 2021:chap 59.

Misra R, Gupta L. Epidemiology: time to revisit the concept of reactive arthritis. Nat Rev Rheumatol. 2017;13(6):327-328. PMID: 28490789 pubmed.ncbi.nlm.nih.gov/28490789/.

Okamoto H. Prevalence of chlamydia-associated reactive arthritis. Scand J Rheumatol. 2017;46(5):415-416. PMID: 28067600 pubmed.ncbi.nlm.nih.gov/28067600/.

Patterson JW. The psoriasiform reaction pattern. In: Patterson JW, ed. Weedon's Skin Pathology. 5th ed. Philadelphia, PA: Elsevier; 2021:chap 5.

Schmitt SK. Reactive arthritis. Infect Dis Clin North Am. 2017;31(2):265-277. PMID: 28292540 pubmed.ncbi.nlm.nih.gov/28292540/.

Weiss PF, Colbert RA. Reactive and postinfectious arthritis. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 182.

  • Reactive arthritis - view of the feet

    Reactive arthritis - view of the feet - illustration

    Reactive arthritis is a disease which classically consists of inflammation of the joints (arthritis), urethra (urethritis), and eye. It frequently includes skin manifestations and is thought to be triggered in some people by an infection. This is a fairly typical rash on the feet. This type of rash may also appear on the hands.

    Reactive arthritis - view of the feet

    illustration

  • Reactive arthritis - view of the feet

    Reactive arthritis - view of the feet - illustration

    Reactive arthritis is a disease which classically consists of inflammation of the joints (arthritis), urethra (urethritis), and eye. It frequently includes skin manifestations and is thought to be triggered in some people by an infection. This is a fairly typical rash on the feet. This type of rash may also appear on the hands.

    Reactive arthritis - view of the feet

    illustration

 

Review Date: 4/30/2023

Reviewed By: Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, New York, NY, and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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