Vitiligo consists of white patches of skin that are caused by the loss of melanin, the pigment that gives skin its color. Melanin is produced by special cells called melanocytes, which are destroyed in people who have vitiligo. Experts are still working out the details to understand why this disease occurs, but evidence strongly suggests that vitiligo is an autoimmune disorder, in which the body's immune system mistakenly targets and injures these specific cells within your own body.
To continue reading this article, you must login
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.