what is it called when your skin is blotchy
1 Actinic keratosis is a precancerous skin condition characterized by scaly, crusty spots on the hands, arms, or face. These spots are typically brown, gray, or pink. The affected area may itch or burn.  Basal cell carcinoma is a form of cancer that affects the top layer of skin.
Vitiligo is a loss of skin pigment that causes white spots or patches to appear on the skin. No one knows exactly why this happens, but it affects people of all races, many of them kids and teens. Because vitiligo affects a person's appearance, it can be upsetting. But it isn't medically dangerous.