lupus melasma
Of human skin color is due to melanin, the pigment brown, black, which is produced by melanocytes, the skin cells. Changes in pigment levels are perceived as changes in skin color, which can be seen both as a loss of color (pigmentation), or as an excessive accumulation of pigment (hyperpigmentation). These changes in pigmentation can come across as simple influences such as the amount of sun exposure, but are a source of extreme distress when due to diseases simply because they bring the added danger of having a disease.
Vitiligo is probably the most common cause of discoloration and generates much concern about the fact that no cause depigmentation, but also makes the color very irregular and unequal, and therefore unsightly. Other conditions common resulting in depigmentation include albinism, Tenia versicolor, nevus and Depigmentosus guttate hypomelanosis.
The most common cause of darkening complexion or hyperpigmentation is excessive exposure to sunlight, but melasma is very familiar to women who have born children. The acanthosis nigricans is associated with resistance to insulin and is fairly common.
We can summarize at the end of that disorders of pigmentation of the skin are diverse in origin and it is always advisable to look professional help when you notice a UN official – change the color of their skin.
Here we only talk of pigmentation and depigmentation without entering the detail the conditions that cause skin pigmentation problems such. However, there is a close relationship between these disorders and pigmentaion process of the skin.
http://www.antivitiligo.com/vitiligo/things-like-vitiligo.html
Dr.Silmar Camarini-Dermatologia/Alergia, Jí – Paraná
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