Yer ur kinda right about Michael Jackson, there is a treatment that can remove blotches. U asked how do u get the disease well it turns out there are a few ways: Its can be in ur family, it can be triggered by sever body shock(like sever burns to most of ur body or something), it can be set off by massive sunburn (but this has to be frequent) or it could be as random as getting cancer. It is an autoimmune disorder so it is manly due to poor gene programming. Tho i guess the good news is i have like only two spots so i might be able to treat it.