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Mongolian spot is a congenital developmental condition—that is, one existing from birth—exclusively involving the skin.The blue colour is caused by melanocytes, melanin-containing cells, that are usually located in the surface of the skin (the epidermis), but are in the deeper region (the dermis) in the location of the spot. [6]
The Mongolian spot is a congenital developmental condition exclusively involving the skin. The blue colour is caused by melanocytes, melanin-containing cells, that are deep under the skin. [6] Usually, as multiple spots or one large patch, it covers one or more of the lumbosacral area (lower back), the buttocks, sides, and shoulders. [6]
The known influence of sunlight on freckles (spots of melanin on the skin, distinct from moles) Studies have found that sunburns and excessive sun exposure can increase risk factors for melanoma. This is in addition to the higher risk already faced by individuals with dysplastic nevi (the uncertainty is in regards to acquiring benign moles).
It should not be confused with Mongolian spot, which is a birthmark caused by entrapment of melanocytes in the dermis but is located in the lumbosacral region. Women are nearly five times more likely to be affected than men, and it is rare among Caucasian people. [6] Nevus of Ota may not be congenital, and may appear during puberty.
They result from a dilation of capillaries in the skin, [3] and may become darker when the child cries or strains. [4] The birthmarks, which are pinkish and irregularly shaped, occur most frequently on the nape of the neck; however, they are also common on the forehead, eyelids and upper lip. [2]
What causes sun spots on the face? True sun spots — lentigines — are caused by sun exposure, the experts say. When you're in the sun, your skin produces the pigment melanin to protect itself ...
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A beauty mark or beauty spot is a euphemism for a type of dark facial mark so named because such birthmarks are sometimes considered an attractive feature. [1] Medically, such "beauty marks" are generally melanocytic nevus, more specifically the compound variant. Moles of this type may also be located elsewhere on the body, and may also be ...