The premature graying or bleaching of hair as a result of malfunctioning melanin-producing cells is another of vitiligo’s main symptoms. As melanin pigment is not only responsible for skin tone but also hair tone, a lack of melanin can cause premature gray or white hair to appear on your beard, eyebrows, temples, and eyelashes.
pigment loss in internal tissues
There is a loss of pigmentation in the mucous membranes that line the genitalia, mouth, and nostrils.
