Vitiligo

Vitiligo or leukodermia is a chronic skin condition that causes loss of pigment, resulting in irregular pale patches of skin. The precise cause of vitiligo is complex and not fully understood. There is some evidence suggesting it is caused by a combination of auto-immune, genetic, and environmental factors. The population incidence in the United States is considered to be between 1% and 2%.

See complete Wikipedia article here.

For more information from the American Academy of Dermatology click here.