Hyperpigmentation on back
Discolored areas of skin are areas of skin that change color. One of the most common causes of dark spots on the back is inflammation, injury, or illness. Hyperpigmentation on back can also develop due to irregular melanin levels. Melanin is a substance that gives skin color and protects it from the sun. When melanin is produced at levels above normal at a certain level in a certain area, it leads to skin discoloration.
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