Genetic skin of different races and different parts of the same individual, the colors are not the same, this is determined by the genetic. Some skin pigment change is the result of both genetic and environmental effects, for example, freckled capacity of synthesis of melanin in the skin more strong than the other parts of the skin, which is determined by the genetic and freckles occur in exposed positions is the result of ultraviolet irradiation and promote melanin formation, environmental factors.
Endocrine factors in pregnancy, menstruation, oral contraceptives, such as synthesis of melanin in the skin increases, leading to skin pigmentation.
Some chronic diseases and chronic infections, tumors, Lupus Erythematosus, cirrhosis and other chronic diseases can cause pigmentation of the skin.
Sleep and mental condition will often stay up to make appear loose, black eyes, pigmentation of the skin, chronic stress, depressed mood and other bad emotions can affect the metabolism of skin pigment, makes skin grey spots forming.
Diet unhealthy eating habits can cause pigmentation of the skin. For example, some people do not like to eat vegetables, over time, lack of vitamins in the body, skin pigmentation-prone; some people eating too much, eat 2 pounds of oranges a day, results of skin showing yellow.
Orignal From: Long spot 5 internal: do not eat vegetables vitamin-induced pigmentation
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