My uncle has vitiligo on his hands, maybe all over his body since he wears long sleeves. I havent seen him in over 10 years, he's 50. He says it was most likely from the chemicals he worked with. I played it off like it wasnt a big deal, then went him and did research and found it, it's genetic and is associated with automimmune diseases that have to do with thyroid and pernicious anemia aka deadly anemia.
My mother and aunt both have anemia, not sure what type. However my uncle, mother and aunt are from one side of the family. Sometimes I noticed small white areas on arm but they fade away or too small to notice.
So scared even though recently i had complete normal CBC and thyroid, kidney and liver panel. Still scared. From what I read vitilgo from industrial chemicals is not really a cause.