Vitiligo is a long-term skin condition in which patches of the skin lose their pigment, becoming white with sharp margins. The disorder, which affects roughly 1-3 percent of the population, is otherwise harmless physically, but it can result in psychological stress and social stigma,...

Vitiligo is a long-term skin condition in which patches of the skin lose their pigment, becoming white with sharp margins. The disorder, which affects roughly 1-3 percent of the population, is otherwise...