+A wrinkle is a [fold](/wiki/fold) or a [crease](/wiki/crease) in a surface, often associated with natural processes. These subtle lines can form in various materials, from human [skin](/wiki/skin) due to aging, to fabric, or even geological formations, revealing a history of [stress](/wiki/stress) or time.
+## See also
+- [Aging](/wiki/aging)
+- [Texture](/wiki/texture)
+- [Surface](/wiki/surface)
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