Various: Skin pigmentation can be affected by heriditary disorders, drugs, infections, inflammation, sun exposure, skin cancers, immune diseases or even tumors of internal organs. You are probably referring to vitiligo, which is essentially a auto-immune condition or to albinism, which is genetic.
Answered 7/25/2013
6.1k views
It depends: Most of the time the immune system is involved the skin is inflammed and the skin lightens or darkens depending on the disorder.
Answered 3/16/2020
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