This image displays a typical site of involvement for pityriasis rosea, displayed as light pink, scaly, slightly elevated lesions. This image displays a rash with slight scaling that is typical of pityriasis rosea. This image displays a rash with slight scaling that is typical of pityriasis rosea. This image displays the round or oval lesions of pityriasis rosea following skin lines like "Christmas tree branches" on the patient's back. In people with darker skin, the small, scaly patches of pityriasis rosea may look more brown than pink. In severe pityriasis rosea, numerous small bumps may run together. This image displays the pink, slightly scaly skin patches typical of pityriasis rosea. The patches of pityriasis rosea are typically oval, often parallel to each other, and may have an edge of scaling at the outside border. Pityriasis rosea in people with darker skin can look more brown than pink.
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Pityriasis Rosea  A parent's guide to condition and treatment information

Picture of Pityriasis Rosea: This image displays a typical site of involvement for pityriasis rosea, displayed as light pink, scaly, slightly elevated lesions. Divider line
This image displays a typical site of involvement for pityriasis rosea, displayed as light pink, scaly, slightly elevated lesions.
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Overview
Pityriasis rosea (PR) is a common, non-cancerous (benign) rash that mostly affects the back, chest, and abdomen. It starts fairly quickly, lasts about 6–8 weeks, and is usually not itchy.

The cause of pityriasis rosea is not known, though it may be due to infection with an unknown virus.
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Last Modified: 22 Dec 2008
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