Why Does Tanning Bring Out White Spots on My Skin?
Find the truth about questions that pique your curiosity in our series, “The Short Answer.” Dermatologist Christine Poblete-Lopez, MD, fields this question about white spots on sun-exposed skin.
A: Your condition has a long name with lots of syllables: idiopathic guttate hypomelanosis.
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It causes little white areas to appear on skin that is exposed to the sun. Thus, the face, neck, hands and arms are most often affected.
People with different skin types develop idiopathic guttate hypomelanosis. Most do so in their 40s or 50s.
While there are no effective treatments for this condition, I would not worry. It’s simply the nature of your skin to react to sun in this way.
—Dermatologist Christine Poblete-Lopez, MD