Recent Blog Articles
Cardiovascular safety from prostate cancer drugs remains uncertain
Rising alcohol use among older adults
Easily distracted? Try meditation
Harvard Health Ad Watch: Can a wearable device reduce stress?
Listening to your hunger cues
Does your child need to bathe every day?
Can flavonoids help fend off forgetfulness?
Can physical or cognitive activity prevent dementia?
Wondering how much your medical care will cost? New rules could help
Long-lasting healthy changes: Doable and worthwhile
What Is It?
Vitiligo consists of white patches of skin that are caused by the loss of melanin, the pigment that is a major contributor to skin. Melanin is produced by special cells called melanocytes, which are destroyed in people who have vitiligo. The cause of vitiligo is not known but evidence strongly suggests that vitiligo is an autoimmune disorder, in which the body's immune system mistakenly targets and injures these specific cells.
Vitiligo can cause minor changes or extensive changes in the skin. In some people, it may be hardly noticeable, while in others it is obvious. In dark-skinned people the vitiligo patches are obvious since they contrast with normal skin. Light-skinned people may have fewer cosmetic concerns, but patches without pigment can become obvious in the summer because unaffected skin tans while vitiligo skin does not tan.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.Sign Me Up
Already a member? Login ».
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.