Vitiligo is a chronic
skin condition characterized by portions of the skin
losing their pigment. It occurs when
skin pigment cells die or are unable to function. Aside from cases of contact with certain chemicals, the cause of vitiligo is unknown. Research suggests vitiligo may arise from
autoimmune, genetic,
oxidative stress, neural, or viral causes. Vitiligo is typically classified into two main categories: segmental and non-segmental vitiligo.