Perhaps the cause may be internal or external depending upon persons daily routine, one has to adapt natural hygiene to lower the risk of Vitiligo.

•  Follow a simple and routined life style
•   Sudden exposure to cold from a heated atmosphere and vice-versa should be avoided
•   Avoid intake of hot and cold food items together
•   Avoid spicy and oily food habits in routine
•   Steal some time from your hectic lifestyle for Yoga/Meditation/Prayer etc to get rid of stress      regularly
•  Avoid treatment on your own thought/study

•  When you find one small spot or many spots on any part of body, which would be pale or     white or even different from your normal skin colour, then rush to a Doctor for proper check     up.
•   Always remember as early you start treatment as faster you recover.