Have You Noticed Small White Spots on Your Arms or Legs? Here’s What They Are

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.

How to Tell Them ApartCan 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

Topical steroids – Prescribed by a dermatologist in some cases

Important: These treatments should only be pursued under a dermatologist’s guidance. What works for one person may not work for another.