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Medical Health Encyclopedia
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Pityriasis rosea

Treating Aging SkinHealthy Beauty TipsPreventing Skin Cancer



Pityriasis rosea on the chest
Pityriasis rosea on the chest


Pityriasis rosea

Definition:

Pityriasis rosea is a skin disorder with a characteristic rash.

Causes, incidence, and risk factors:

Text Continues Below



This disorder is a common skin rash of young people, especially young adults. It occurs most commonly in the fall and spring, and a virus is suspected as the cause. Although pityriasis rosea may occur in more than one person in a household at a time, it is not thought to be highly contagious.

Attacks generally last 4 - 8 weeks. Symptoms may disappear by 3 weeks or last as long as 12 weeks. There is generally a single larger patch called a herald patch followed several days later by more a rash. Although the disorder usually resolves in time, a health care provider should be consulted to rule out other disorders including syphilis.



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