4. Sunspots (Not the Kind You Think)
Ironically, sun damage can cause both dark spots and white spots. Some people develop white spots where sun exposure has destroyed pigment cells over time—essentially, tiny areas of sun damage.
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 aging, the best prevention is sun protection:
Use broad-spectrum sunscreen daily on exposed skin
Wear protective clothing when outdoors for long periods
Avoid tanning beds entirely
As for treatment: There’s no guaranteed way to make existing IGH spots disappear, but some people have success with:
Topical retinoids – May help stimulate pigment production
Cryotherapy – Freezing can sometimes trigger repigmentation (results vary)
Microneedling – Some evidence suggests it may help
