Albinism vs vitiligo
If you are born with a genetic mutation that prevents production of melanin
(and other pigments), then you are an albino and have albinism
If you begin to lose pigment
(typically in patches) as you age, then you likely have vitiligo
(e.g. Michael jackson), which is a skin condition where the pigment-producing cells die for various reasons.
Answer assisted by David Miller, Medical Student