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Small, flat white spots, usually 1-5mm in size
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Most commonly on sun-exposed areas: shins, forearms, shoulders
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Smooth texture (not scaly or raised)
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More common as we age (often starting after 40)
What causes it?
While the exact cause isn’t known, IGH is strongly associated with:
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Sun exposure over many years (it’s most common on sun-exposed skin)
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Natural aging – the spots become more common as we get older
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Genetics – some people are simply more prone to them
Is it harmful?
No. IGH is completely harmless. It doesn’t turn into skin cancer, doesn’t spread to other people, and doesn’t affect your overall health. It’s purely a cosmetic concern.