Reviewed by medical experts • For informational purposes only
Vitiligo is an autoimmune loss of pigment cells - not contagious, not infection, and not caused by milk, fish or food combinations.
Vitiligo happens when the cells that make skin pigment (melanocytes) are destroyed or stop working - and the strongest evidence points to an autoimmune process, not to food, infection or anything contagious.
The core mechanism - autoimmune. In most people with vitiligo, the immune system mistakenly attacks melanocytes. Why this starts is not fully understood; genes play a role (vitiligo can run in families), and it is associated with other autoimmune conditions, especially autoimmune thyroid disease. Checking thyroid function is a routine part of a new vitiligo workup for this reason.
Other contributing ideas. Oxidative stress in pigment cells, nerve-related factors (especially in segmental vitiligo), and a trigger event - a sunburn, skin injury (new patches can appear at injury sites, called the Koebner phenomenon), or major emotional stress - are all thought to contribute in susceptible people.
What does NOT cause vitiligo: it is not an infection and cannot spread by touch, sharing food, or living together. It is not caused by eating specific food combinations - the popular belief that milk with fish (or curd, citrus, or 'sour' foods) causes white patches has no scientific basis. It is not leprosy, not a sign of internal poisoning, and not caused by cosmetics in the usual sense (though certain harsh chemicals, like some phenolic compounds in industrial products, can trigger depigmentation).
Who gets it: all skin types, all ages, roughly equal in men and women; it is simply more visible - and more socially distressing - on darker skin, which is part of why it is so prominent a concern in India.
Ayurvedic view (interpretive): classical texts describe white-patch disease as shwitra or kilasa, attributed to dosha imbalance and incompatible-food theories. This is a traditional interpretive framework with limited evidence; modern understanding identifies autoimmunity as central. The incompatible-food explanations in classical texts are a cultural source of the milk-and-fish myth - they should not be read as proven causes.
Remember: vitiligo is an autoimmune loss of pigment cells - not contagious, not an infection, and not caused by milk, fish or food combinations. Family history and thyroid autoimmunity are the real associations to know.
Written By
Sanatan Ayurveda
BDS
Reviewed By
Dr. Varun Gupta
MD Pharmacology, MBBS
Last updated on
27 Sep 2022 • 06:23 PM (IST)
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Vitiligo moves from onset through active spread to stability - early phases repigment best, old white-haired patches least.
Ayurvedic care may accompany vitiligo treatment, but bakuchi is a real photosensitizer - burns and new patches are documented harms.
Stop activity, repigment patiently with phototherapy, graft stable patches, protect from sun - control, not a promised cure.
Well-defined milky-white patches with normal sensation, often on the face and hands - itching, scaling or numbness mean a different diagnosis.
Onset cannot be reliably prevented, but burns, injury-triggered patches, delay and distress all can be.
Yoga and exercise serve stress, mood and fitness in vitiligo - protect patches from sun and friction, and let medicine do the treating.
