Skin Disorders

What causes pityriasis rosea?

A Answers (2)

  • Pityriasis rosea is an itchy rash that starts on the torso. Currently there is nothing specifically known to cause pityriasis rosea. One thought is that a virus such as a variety of the human herpes virus may be a cause.

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  • AMehmet Oz, MD, Cardiology (Cardiovascular Disease), answered

    The cause of pityriasis rosea is not altogether clear. Some medical professionals believe that the human herpesvirus 6 and 7 may play a role in the condition.


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