Is the Sun a Friend or Foe in Vitiligo Patients?

Vitiligo is a disease that causes loss of color in the skin. This condition occurs when pigment-producing cells (melanocytes) are damaged in some areas of the skin. In vitiligo, porcelain-white, well-defined spots are usually seen. This disease is an immune system problem that occurs due to both genetic and environmental factors. It has also been associated with problems in metabolism and cell renewal.