Psoriatic Arthritis Causes (Cont.)

 
HIV/AIDS
People who have HIV or AIDS are at an increased risk of developing psoriasis, as well as an increased risk of developing psoriatic arthritis. In fact, psoriatic arthritis is often the first sign of infection with HIV.
 
Other Infections
Researchers think that infections with a virus or bacteria may increase a person's chances of developing psoriatic arthritis. A streptococcal infection (or an infection with the bacteria that cause strep throat) may be an example of an infection that increases a person's risk of developing psoriatic arthritis. However, this has not been proven.
 
Trauma
Trauma to the skin has been linked to psoriatic arthritis. This is called the Koebner phenomenon. Some patients develop psoriatic arthritis in an injured joint.
 

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Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD