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What causes guttate psoriasis?

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An outbreak of guttate psoriasis is usually triggered by a bacterial infection -- typically streptococcus (strep throat). It sets off an immune system reaction that causes the spots on your skin.

In some cases, guttate psoriasis is genetic. If someone in your family has it, your chances of getting it increase.

From: Guttate Psoriasis WebMD Medical Reference

SOURCES:

Genetic and Rare Diseases Information Center: “Guttate psoriasis.”

National Psoriasis Foundation: “Guttate psoriasis,” “About psoriasis.”

Medscape: “Guttate psoriasis.”

Emedicine

Reviewed by Stephanie S. Gardner on October 16, 2018

SOURCES:

Genetic and Rare Diseases Information Center: “Guttate psoriasis.”

National Psoriasis Foundation: “Guttate psoriasis,” “About psoriasis.”

Medscape: “Guttate psoriasis.”

Emedicine

Reviewed by Stephanie S. Gardner on October 16, 2018

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What does your doctor need to know to diagnose guttate psoriasis?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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