PITYRIASIS ALBA

 Basic information

description

Pityriasis alba is a common disorder of the skin. It causes a temporary loss of pigmentation (coloring) in patches found usually on the cheeks and, sometimes, the neck and shoulders. Pityriasis means "scaly" and alba means "white" in Latin. It occurs mostly in children, but may appear in adults up to ages 20 to 30.

FREQUENT SIGNS & SYMPTOMS

• Small white or light-pink patches with vague borders. They sometimes have pinpoint-sized white papules (small, raised bumps). Patches feel smooth.
• Patches are most apparent in summer because the areas do not tan. Tanning increases the contrast. A scaly appearance may be more visible in winter when air in the home is dry.
• There may be 1 to 20 patches at a time. They may range in size from 1/4 to 2 inches.
• Patches may itch occasionally, but they are not painful.

causes

Unknown. The tendency may be inherited.

risk increases with

• Family history of allergies of any kind.
• Skin that is extra dry and sun exposure may be risk factors.

PREVENTIVE MEASURES

No specific preventive measures.

expected outcomes

Patches may come and go for years. Between ages 20 and 30, they disappear completely.

possible complications

None expected.

 diagnosis & treatment

general measures

• Your health care provider can usually diagnose the disorder by an exam of the affected skin. Medical tests are generally not needed.
• No truly effective therapy is available. Some skin-care products may help the dry skin.
• Use sunscreen and protective clothing to prevent sunburn in affected areas.

medications

• Moisturizers may improve roughness or dryness, but do not improve the color.
• Prescription or nonprescription topical steroid drug(s) to control itching may be recommended.

activity

No limits.

diet

No special diet.

 notify our office if

You or a family member has symptoms of pityriasis alba.

Special Notes: