Pityriasis Alba

Pityriasis Alba

Overview

Pityriasis alba is a common, benign skin condition that causes round or oval, slightly scaly, hypopigmented (lighter than surrounding skin) patches, most often on the face. It primarily affects children and adolescents and is considered a minor manifestation of atopic dermatitis. The condition is self-limiting and generally resolves on its own over months to years.

Key Symptoms

  • Round or oval, pale or whitish patches on the skin
  • Fine, dry scaling on the surface of the patches
  • Patches typically 1-4 cm in diameter
  • Most common on the cheeks, forehead, and upper arms
  • More noticeable in darker skin tones and after sun exposure
  • Usually asymptomatic, though mild itching may occur

Affected Areas

Cheeks, Forehead, Upper arms, Neck, Trunk

Care Instructions

  1. Reassurance that the condition is harmless and self-limiting.
  2. Regular use of gentle, fragrance-free moisturizers to reduce dryness and scaling.
  3. Sun protection helps prevent the contrast between affected and unaffected skin from becoming more noticeable.
  4. Mild topical corticosteroids or calcineurin inhibitors can be used for prominent or itchy patches.
  5. Avoid harsh soaps and excessive scrubbing of the affected areas.
  6. See a dermatologist if patches are widespread, persistent, or if the diagnosis is uncertain.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Very common; affects up to 5% of children worldwide, more noticeable in darker skin tones