Vitiligo

Summary

Vitiligo is a chronic autoimmune disorder that causes patches of skin to lose pigment or color; these vary in size and can appear anywhere on the body. The disorder is thought to be caused by immune system changes with potential genetic factors. It can be brought on by regional environmental risk factors, especially early in life, as well as sun or chemical exposure, stress, and chronic physical trauma. The most common form, nonsegmental vitiligo, tends to affect more skin over time; potential treatments include topical medications and light therapy.