Vitiligo is a condition of the skin where there is patchy loss of pigment. People with dark skin are particularly cosmetically affected. Loss of pigment in haired skin leads to white hair. Vitiligo can occur following injury to the skin or spontaneously because of an autoimmune reaction targeting pigment cells.
There are some creams and medications that can help re-pigmentation. Phototherapy can also be used to stop the immune mediate destruction of pigment cells and rtiluate regimentation by inducing factors that increase the pigment cells to produce pigment