
Reactive arthritis is a rare autoimmune response to a bacterial infection in the body, causing joint pain and swelling. It is triggered by an infection in another part of the body, such as the intestines, genitals, or urinary tract. The condition usually affects the knees, ankles, and feet, but can also cause eye inflammation, skin rashes, mouth sores, and gastrointestinal symptoms. While reactive arthritis is not contagious, the bacteria that cause it can be transmitted through contaminated food or sexual contact. Symptoms of reactive arthritis typically last for several months and can include muscle pain, treated with hot/cold therapy, physical therapy, and medication.
| Characteristics | Values |
|---|---|
| Cause | Triggered by an infection in another part of the body, such as the intestines, genitals, urinary tract, or stomach |
| Symptoms | Painful, swollen joints, especially in the knees, ankles, feet, heels, lower back, and buttocks; Eye inflammation (conjunctivitis); Gastrointestinal symptoms like stomach pain and diarrhea; Increased urinary frequency and painful urination; Inflammatory skin rashes and mouth sores; Achilles tendinitis and heel pain; Joint swelling in fingers and toes; Flu-like symptoms, including fever, fatigue, and body aches |
| Treatment | Heat packs, painkillers, physical therapy, orthotics, hot/cold therapy, steroid injections, disease-modifying anti-rheumatic drugs (DMARDs), antibiotics, non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids, sulfasalazine, hydroxychloroquine, methotrexate, surgery |
| Prevention | Store food at proper temperatures, cook thoroughly, use condoms |
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What You'll Learn

Reactive arthritis is caused by bacterial infections in the body
Reactive arthritis is a form of inflammatory arthritis that develops in response to an infection in another part of the body. It is caused by bacterial infections in the body, which can enter the body in several ways.
The most common bacterial infections that cause reactive arthritis are transmitted sexually or through contaminated food. Sexually transmitted infections that can cause reactive arthritis include chlamydia trachomatis, which is the most common cause of reactive arthritis following urethritis. Other bacterial infections transmitted through sexual contact include Ureaplasma urealyticum, Ureaplasma, and Mycoplasma. Foodborne bacterial infections that can cause reactive arthritis include salmonella, shigella, yersinia, and campylobacter. These bacteria can be contracted by eating spoiled food or food that has come into contact with contaminated surfaces.
In rare cases, reactive arthritis can also be caused by the bacterium Chlamydia pneumoniae, which causes respiratory infections. This bacterium can enter the body through the urogenital tract or the gastrointestinal tract.
The symptoms of reactive arthritis typically develop 1 to 4 weeks after exposure to the triggering infection. The most common symptoms include joint pain and stiffness, especially in the lower back, knees, ankles, and feet. Other symptoms may include eye inflammation (conjunctivitis), gastrointestinal symptoms such as stomach pain and diarrhea, and inflammatory skin rashes.
It is important to note that reactive arthritis is not contagious, but the bacteria that cause it can be transmitted through sexual contact or contaminated food.
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It can be triggered by STIs or foodborne bacteria
Reactive arthritis is triggered by an infection in another part of the body, often in the intestines, genitals, or urinary tract. The condition usually targets the knees, ankles, and feet. It can also cause inflammation in the eyes, skin, and urethra.
The infection that causes reactive arthritis is often mild, and one might not remember having it before the joint pain began. The signs and symptoms of reactive arthritis generally start 1 to 4 weeks after exposure to a triggering infection.
Numerous bacteria can cause reactive arthritis. Some are transmitted sexually, while others are foodborne. Foodborne bacteria that can cause reactive arthritis include salmonella, shigella, yersinia, and campylobacter. These bacteria can cause diarrhoea, which can lead to reactive arthritis. Sexually transmitted infections (STIs) that can trigger reactive arthritis include chlamydia.
To reduce the risk of developing reactive arthritis, one can lower exposure to the bacteria that may lead to it. This can be done by storing food at the proper temperatures and cooking it properly. Using condoms can also help lower the risk of getting an STI that could trigger reactive arthritis.
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Symptoms include painful, swollen joints and fatigue
Reactive arthritis is a rare autoimmune response to a bacterial infection in the body. It is triggered by an infection in another part of the body, most often in the intestines, genitals, or urinary tract. It can also be caused by food poisoning or a sexually transmitted infection (STI).
Symptoms of reactive arthritis include painful, swollen joints and fatigue. Pain and stiffness in the joints is a common symptom, especially in the lower back, knees, ankles, feet, and heels. The pain may also occur in the buttocks, eyes, skin, and urethra. The classic triad of reactive arthritis symptoms is arthritis (joint inflammation), conjunctivitis (eye inflammation), and urethritis (inflammation of the urethra).
The fatigue associated with reactive arthritis can have a significant impact on daily life. It is important to recognize this fatigue and make adjustments to daily routines, such as reducing demanding activities and getting adequate rest. Swimming and stretching exercises can help keep the joints moving and improve fatigue.
In addition to painful, swollen joints and fatigue, reactive arthritis can cause gastrointestinal symptoms such as stomach pain and diarrhea, frequent urination, skin rashes, mouth sores, Achilles tendinitis, and flu-like symptoms. The symptoms typically last for several months, and the condition usually goes away within 6 to 12 months.
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Treatments include hot/cold therapy, NSAIDs, and steroids
Reactive arthritis (ReA), formerly known as Reiter syndrome, is an autoimmune condition that develops in response to an infection. It causes joint pain and swelling, most often in the knees, ankles, feet, heels, lower back, or buttocks. The condition usually occurs in adults aged 20 to 40.
ReA is treated with nonsteroidal anti-inflammatory drugs (NSAIDs) such as indomethacin (Indocin), which can relieve inflammation and pain. Other medications used to treat ReA include steroids, antibiotics, and various disease-modifying antirheumatic drugs (DMARDs).
Steroids can be administered through injections into affected joints, reducing inflammation and allowing a return to normal activity levels. Steroid eye drops may be used for eye symptoms, and steroid creams can be applied to skin rashes.
Hot and cold therapy can also help reduce inflammation and ease the pain and stiffness associated with arthritis. Heat therapy dilates blood vessels, stimulates blood circulation, and reduces muscle spasms. Moist heat, such as warm baths or heated washcloths, can be used before and after exercise for additional relief. Cold therapy, on the other hand, involves using ice packs or cold compresses to numb deep pain and reduce swelling by constricting blood vessels.
It may take some "trial and error" to determine which therapy works best for your pain. If pain persists, consult your doctor for further advice and treatment options.
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It is not contagious, but the bacteria that cause it can be
Reactive arthritis is an inflammatory type of arthritis that affects the joints, eyes, and urinary tract (bladder, vagina, urethra). It is triggered by an infection in another part of the body, often the intestines, genitals, or urinary tract. It is not contagious and usually goes away within 6 to 12 months. However, the bacteria that cause it can be transmitted from person to person, either through sexual contact or by consuming contaminated food.
Numerous bacteria can cause reactive arthritis, and only a few people exposed to these bacteria develop reactive arthritis. The bacteria that cause reactive arthritis are usually contracted through sexual contact or by eating spoiled food. The most commonly associated bacteria are Chlamydia trachomatis, Salmonella, Shigella, Yersinia, and Campylobacter. These bacteria typically enter the body through the urogenital tract or the gastrointestinal tract. Chlamydia trachomatis, for example, can enter the body through the vagina or urethra during sexual contact and spread to the bladder. Salmonella, on the other hand, can enter the body if someone eats spoiled food or food that came into contact with contaminated surfaces.
Some people may also develop reactive arthritis due to rare bacterial infections. For instance, in rare cases, the bacterium Chlamydia pneumoniae, which causes respiratory infections, may cause reactive arthritis. Additionally, rare cases of reactive arthritis have been reported after administering the Bacillus Calmette-Guérin vaccine treatment for bladder cancer.
It is important to note that reactive arthritis is not a common condition, and it typically affects adults between the ages of 20 and 40. While it is not contagious, it is essential to be aware of the bacteria that can cause it and take precautions to reduce exposure to these bacteria. Proper food storage, thorough cooking, and safe sexual practices can help lower the risk of developing reactive arthritis.
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Frequently asked questions
Reactive arthritis is a condition that causes inflammation in various places in the body, often in the intestines, genitals, or urinary tract. It is triggered by an infection in another part of the body and causes joint pain and swelling.
The most common symptoms of reactive arthritis are joint pain and stiffness, especially in the lower back, knees, ankles, and feet. Other symptoms include eye pain and swelling, gastrointestinal issues, frequent urination, skin rashes, mouth sores, and fatigue.
Reactive arthritis can cause muscle pain and stiffness. It is recommended to use heat packs or ice packs to relieve soreness and reduce stiffness in the muscles.







































