This image displays scaling bumps and lighter pigmented patches of skin. This image displays a close-up of pityriasis alba. Areas of the skin that are lighter in color and flat to the touch are typical of pityriasis alba. Pityriasis alba can cause light patches of skin, typically involving the face, in people with darker skin. Flat, smooth, lighter (hypopigmented) patches of skin are typical of pityriasis alba.
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Pityriasis Alba:
A parent's guide to condition and treatment information

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Picture of Pityriasis Alba: This image displays scaling bumps and lighter pigmented patches of skin. Divider line
This image displays scaling bumps and lighter pigmented patches of skin.
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Overview
Pityriasis alba is a common noncancerous (benign) skin condition affecting children. It appears as light-colored patches, especially on the cheeks.

Although the condition typically lasts 1 year or more without treatment, pityriasis alba usually resolves after puberty or by the time the child reaches adulthood.

The exact cause of pityriasis alba is unknown, though triggers may include:
  • Heat
  • Humidity
  • Heavily scented detergents or soaps
  • Abrasive clothing
  • Smoke
  • Stress
Last Modified: 29 Jan 2008

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