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Direct Answer
Close your eyes and run a fingertip over the mark. If the surface feels completely smooth and only the color is different, that’s pigmentation. If you can feel a dip, a raised edge, or any texture change, that’s a real structural scar. A second check confirms it: gently stretch the skin in good light. Pigmentation flattens further and becomes less visible. A true scar still casts a faint shadow, because its actual contour has changed, not just its color.
Two marks can look almost identical in a mirror and be completely different problems underneath. Getting this distinction right matters because treating one like the other genuinely doesn’t work.
The touch test that settles most of it
Pigmentation is a color change with no structural component. The skin’s surface stays completely flat and smooth, even though it looks darker than what surrounds it. A structural scar is different at the level of the tissue itself, not just the surface color, which is exactly why you can feel it with your eyes closed even when you can’t always tell by looking.
The second test, when the first one isn’t obvious
Gently stretching the skin in good light adds a second, independent check. A flat pigment mark tends to flatten out further and become less noticeable when the skin is stretched taut. A genuine scar still casts a shadow or shows its contour, because stretching the surface doesn’t change the underlying structure that’s actually different. (For more on this distinction, see this clinical breakdown of the touch test for pigment versus structural scarring.)
Why this is honestly harder than it sounds sometimes
Even trained dermatologists don’t always agree instantly. One study found meaningful variation between clinicians assessing the same marks, particularly when skin was still actively reacting or inflamed. If your own read feels uncertain, that’s a genuinely reasonable reaction, not a sign you’re missing something obvious. The two can also sit side by side on the same area, which adds to the confusion.
Why the distinction actually changes what helps
Pigmentation responds to consistent topical care, sun protection, and time, since the surface itself hasn’t structurally changed. A true scar won’t fill in or flatten no matter how long you wait or how diligently you moisturize, because the underlying tissue structure is what needs addressing, which usually means a different, more targeted approach entirely.
Not sure which one you’re actually looking at?
Book a 60-minute consultation with Ken — RM30, a real diagnosis, no pitch.
