Medically reviewed by Marisa Garshick, MD 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 ...

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 ...