Pigmentation is what gives the skin its color. Hyper-pigmentation is a common, usually harmless condition in which patches of skin become darker in color than the normal surrounding skin. When a person is healthy, his or her skin will appear uniform in color. This darkening occurs when an excess of melanin, the brown pigment that produces normal skin color, forms deposits in the skin. Exposure to sunlight is a major cause of hyperpigmentaion, and will darken already hyperpigmented areas. In the case of illness or injury, the person's skin may change color, becoming darker (hyper
pigmentation) or lighter (hypo
pigmentation). Now, you...