has destroyed pigment cells over time—essentially, tiny areas of sun damage.
How to Tell Them Apart
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FEATURE IGH TINEA VERSICOLOR VITILIGO
Size Small (1-5mm) Variable Variable, often larger
Shape Round/teardrop Irregular patches Irregular patches
Location Sun-exposed areas (arms, legs) Chest, back, shoulders Anywhere, often symmetrical
Texture Smooth May be slightly scaly Smooth
Age of onset Usually after 40 Any age Often starts young
Seasonal Year-round More noticeable in summer Year-round
Can You Prevent or Treat IGH?
Since IGH is linked to sun exposure and