Formerly known as Reiter’s syndrome, reactive arthritis is joint inflammation due to an abnormal immune response to a recent infection, usually a bacterial infection of the genital tract or intestine. The main symptom is joint pain, swelling, and stiffness.
The condition may also affect the eyes, causing conjunctivitis or blurred vision, or urethra, causing painful urination and a discharge from the urethra.
Treatment may include antibiotics if the infection is still present.
The arthritis itself is usually treated with pain relievers, corticosteroids to reduce inflammation, and sometimes disease-modifying antirheumatic drugs to block the abnormal immune response.

Othere related diseases

COMPARTMENT SYNDROME
Compartment syndrome occurs when excessive pressure builds up within an enclosed group of muscles (called a compartment), usually as a result of bleeding or inf...

DISLOCATED JOINT
In a joint dislocation, the bones of a joint become displaced, usually as a result of injury. A dislocation is often accompanied by tearing of the joint ligamen...

DUPUYTRENS CONTRACTURE
In Dupuytren’s contracture, the fibrous tissue in the palm of the hand becomes thickened and forms lumps (nodules) under the skin. The nodules form cords of t...

Ewing's sarcoma
...

FIBROMYALGIA
Fibromyalgia is a long-term condition that causes widespread muscle pain. The cause is unknown, but the condition often develops during periods of stress. In ad...

FOOT DEFORMITIES
Flatfeet are normal in children until the age of about 2 or 3 years, when the arch starts to develop. Sometimes this fails to happen, resulting in flatfeet (pes...

GANGLION
A ganglion is a fluid-filled cyst that develops under the skin near a joint or tendon—most commonly on the wrist or back of the hand, but sometimes on the foo...

HAMMER TOE
Hammer toe is a deformity of the second, third, or fourth toe in which the toe is permanently bent at the middle joint. A common cause is poorly fitting footwea...