Have You Noticed Small White Spots on Your Arms or Legs and Don’t Know What They Are? Here’s What Experts Think

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After spending time in the sun, tiny areas of skin can lose pigment and appear lighter than surrounding skin. This is often more noticeable on darker or tanned skin.

Why it happens:
Sun can gradually break down melanin—the pigment that gives skin its color—resulting in isolated pale patches.

2. Pityriasis Alba

This is a mild skin condition, especially common in children and teens. It causes faint, scaly, light-colored patches that may be more visible after tanning.

Typical features:

  • Not painful or itchy

  • Often fade over time

  • May come and go with dry weather

3. Fungal Infections

Some types of fungal skin infections can show up as discolored patches. These may be paler or slightly different from your normal skin tone.

Signs to Watch For:

  • Slight itchiness

  • Spreading or enlarging patches

  • Often more visible in warm, sweaty areas

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