According to the National Institutes of Health (NIH), Reactive arthritis is a form of arthritis, or joint inflammation, which occurs as a “reaction” to an infection elsewhere in the body. Besides joint inflammation, reactive arthritis is associated with two other symptoms: redness and inflammation of the eyes (conjunctivitis) and inflammation of the urinary tract (urethritis). These symptoms may occur alone, together, or not at all.

Reactive arthritis is also known as Reiter’s syndrome, and your doctor may refer to it by yet another term, as a seronegative spondyloarthropathy. The seronegative spondyloarthropathies are a group of disorders that can cause inflammation throughout the body, especially in the spine. (Examples of other disorders in this group include psoriatic arthritis, ankylosing spondylitis, and the kind of arthritis that sometimes accompanies inflammatory bowel disease.)

The symptoms of reactive arthritis usually last 3 to 12 months, although symptoms can return or develop into a long-term disease in a small percentage of people.

What Causes Reactive Arthritis?

Reactive arthritis typically begins about 1 to 3 weeks after infection. The bacterium most often associated with reactive arthritis is Chlamydia trachomatis, commonly known as chlamydia. It is usually acquired through sexual contact. Some evidence also shows that respiratory infections with Chlamydia pneumoniae may trigger reactive arthritis.

Infections in the digestive tract that may trigger reactive arthritis include Salmonella, Shigella, Yersinia, and Campylobacter. People may become infected with these bacteria after eating or handling improperly prepared food, such as meats that are not stored at the proper temperature.

Doctors do not know exactly why some people exposed to these bacteria develop reactive arthritis and others do not, but they have identified a genetic factor, human leukocyte antigen (HLA) B27, that increases a person’s chance of developing reactive arthritis. Approximately 80 percent of people with reactive arthritis test positive for HLA-B27.

Who Gets Reactive Arthritis?

Overall, men between the ages of 20 and 40 are most likely to develop reactive arthritis. However, evidence shows that although men are nine times more likely than women to develop reactive arthritis caused by sexually acquired infections, women and men are equally likely to develop reactive arthritis as a result of food-borne infections. Women with reactive arthritis often have milder symptoms than men.

What Are the Symptoms of Reactive Arthritis?

Reactive arthritis most typically results in inflammation of the urogenital tract, the joints, and the eyes. Less common symptoms are mouth ulcers and skin rashes. Any of these symptoms may be so mild that patients do not notice them. They usually come and go over a period of several weeks to several months.

The arthritis associated with reactive arthritis typically involves pain and swelling in the knees, ankles, and feet. Wrists, fingers, and other joints are affected less often. People with reactive arthritis commonly develop inflammation of the tendons (tendinitis) or at places where tendons attach to the bone (ethesitis). In many people with reactive arthritis, this results in heel pain or irritation of the Achilles tendon at the back of the ankle. Some people with reactive arthritis also develop heel spurs, which are bony growths in the heel that may cause chronic (long-lasting) foot pain. Approximately half of people with reactive arthritis report low-back and buttock pain.

What Natural Anti Inflammatory Remedies are Available for Treating Reactive Arthritis?

CM8™ is an all-natural ingredient in natural supplements that functions in three different ways. First, it acts as a highly effective lubricant in the joints, muscles and other tissues, allowing them to move smoothly. Decrease or loss of morning stiffness is commonly noted shortly after commencing treatment. Next, CM8™ functions as a natural anti-inflammatory. Relief from swollen joints is often seen after the 4th or 5th week of treatment. Third, it is also an immune system modulator, which can be effectual against autoimmune diseases, such as arthritic conditions. CM8™ relieves joint pain at its source, reducing inflammation and irritation of the joints and tissues. It also has been helpful for many sufferers of muscle tension and fibromyalgia.

What Is the Prognosis for People Who Have Reactive Arthritis?

Most people with reactive arthritis recover fully from the initial flare of symptoms and are able to return to regular activities 2 to 6 months after the first symptoms appear. In such cases, the symptoms of arthritis may last up to 12 months, although these are usually very mild and do not interfere with daily activities. Approximately 20 percent of people with reactive arthritis will have chronic (long-term) arthritis, which usually is mild. Studies show that between 15 and 50 percent of patients will develop symptoms again sometime after the initial flare has disappeared. It is possible that such relapses may be caused by reinfection. Back pain and arthritis are the symptoms that most commonly reappear. A few patients will have chronic, severe arthritis that is difficult to control with treatment and may cause joint damage.

Most of this information was taken from the National Institutes of Health website.