Because it does occur more frequently in families, but at present, the evidence is still inadequate.
Vitiligo sometimes runs in families, but the inheritance pattern is complex since there are multiple causative factors. Also, most of the specific genetic and environmental factors that contribute to developing the condition have not been identified.
However, about one-fifth of people with this condition have at least one close relative who is also affected.
So it is difficult to predict the exact risk for other family members to develop vitiligo.
Keywords: vitiligo hereditary, vitiligo genetic