At least one in every five people affected by vitiligo has a relative with this condition. Thus, scientists presume that the disease is hereditary before anything. However, it would be hard to bring that conclusion without full evidence.
The more accurate idea is that vitiligo requires many specific factors to develop and that genes are just one of them. Let’s put this in perspective. If a father had vitiligo, it would be premature to say that his son will have it too. However, it would be unreasonable to say the opposite as well.
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