White spots on the skin can be caused by sun exposure or conditions including milia, vitiligo, or pityriasis alba. The spots appear when there is a loss of skin pigment or from trapped skin cells.

White spots on your skin can signal idiopathic guttate hypomelanosis, a result of UV exposure. They may also be leftover scars from eczema or tinea versicolor, a fungal infection. Flat warts look ...

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Dark spots on the skin are usually not a cause for concern, but some people may choose to get rid of them for cosmetic reasons through laser treatment, microdermabrasion, and other methods.