Vitiligo  is caused by a loss of skin melanocytes.  Although the exact mechanism is not known, at least in some cases, an autoimmune process may play a role.
Vitiligo causes
Melanocytic nevus causes
Vitiligo risk factors
Dysplastic nevus causes
Linitis plastica causes
Vitiligo other diagnostic studies
Atopic dermatitis causes
Onychomycosis causes