Who gets pityriasis rosea? People of all ages and skin colors get pityriasis rosacea, but this skin disease is more likely to occur:
- Between 10 and 35 years of age.
- During pregnancy.
What causes pityriasis rosea? No one knows what causes pityriasis rosea. Research shows that it is not an allergy. We also know that fungi (plural of fungus) and bacteria do not cause this skin disease. A virus may be the cause, but researchers have yet to prove this.
While it is possible that a virus causes pityriasis rosea, this skin disease does not seem to be contagious. It does not seem to spread from one person to another.
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