Pityriasis rosea

Pityriasis rosea on the back, with close-up of the rash

Pityriasis rosea (say "pih-tih-RY-uh-sus ROH-zee-uh) is a common skin problem that causes a rash. Salmon-coloured oval patches appear in batches. They appear on the belly, chest, back, arms, and legs. Patches sometimes spread to the neck but rarely to the face.

Pityriasis rosea is usually harmless.

Current as of: October 31, 2019

Author: Healthwise Staff
Medical Review: E. Gregory Thompson, MD - Internal Medicine
Adam Husney, MD - Family Medicine
Martin J. Gabica, MD - Family Medicine
Randall D. Burr, MD - Dermatology

Is it an emergency?

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