Leukoderma is a cutaneous condition, an acquired condition with localized loss of pigmentationof the skin that may occur after any number of inflammatory skin conditions, burns, intralesional steroid injections, postdermabrasion, etc. The cause of vitiligo is unknown, but research suggests that it may arise from autoimmune condition in which immune system of body destroys its own cells & tissues, genetic, stress.
The incidence worldwide is less than 1%. The most common form is non-segmental vitiligo, which tends to appear in symmetric patches, sometimes over large areas of the body. Excessive mental worry, presence of parasites in alimentary canal and mostly improper hygiene too may also be considered to be one of the causes according to Ayurveda.