what causes my skin to discolor
Some of the more common causes for changes in skin color are illness, injury, and inflammatory problems. Discolored skin patches also commonly develop in a certain part of the body due to a difference in melanin levels. Melanin is the substance that provides color to the skin and protects it from the sun.
Skin color - patchy. Patchy skin color is areas where the skin color is irregular. Mottling or mottled skin refers to blood vessel changes in the skin that cause a patchy appearance. Irregular or patchy discoloration of the skin can be caused by: Changes in melanin, a substance produced in the skin cells that gives skin its color.
Hypopigmentation in skin is the result of a reduction in melanin production. Examples of hypopigmentation include: Vitiligo: Vitiligo causes smooth, white patches on the skin. In some people, these patches can appear all over the body.