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What causes psoriasis?

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A variety of factors -- ranging from emotional stress and trauma to streptococcal infection -- can cause an episode of psoriasis. Recent research indicates that some abnormality in the immune system is the key cause of psoriasis. As many as 80% of people having flare-ups report a recent emotional trauma, such as a new job or the death of a loved one. Most doctors believe such external stressors serve as triggers for an inherited defect in immune function.

From: Psoriasis WebMD Medical Reference

SOURCES: National Institute of Arthritis and Musculoskeletal and Skin Disease. National Psoriasis Foundation. The Psoriasis Foundation. American Academy of Dermatology.



Reviewed by Debra Jaliman on June 25, 2019

SOURCES: National Institute of Arthritis and Musculoskeletal and Skin Disease. National Psoriasis Foundation. The Psoriasis Foundation. American Academy of Dermatology.



Reviewed by Debra Jaliman on June 25, 2019

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What can worsen psoriasis?

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