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However, in light skinned populations, namely those of European descent, women have darker skin than men. [11] [110] It is unknown why skin color is sexually dimorphic in some populations. White women may have darker skin than white men because the female sex hormone estrogen is known to increase skin pigmentation in lighter-skinned populations ...
In short, melasma is a chronic skin condition that appears as darkened areas on the face due to an overproduction of melanin, says Gina Charles, MO, a family physician specializing in skincare. It ...
Hyperpigmentation can be caused by sun damage, inflammation, or other skin injuries, including those related to acne vulgaris. [1] [2] [3]: 854 People with darker skin tones are more prone to hyperpigmentation, especially with excess sun exposure. [4] Many forms of hyperpigmentation are caused by an excess production of melanin. [4]
Excessive UV radiation causes sunburn along with other direct and indirect DNA damage to the skin, and the body naturally combats and seeks to repair the damage and protect the skin by creating and releasing further melanin into the skin's cells. With the production of the melanin, the skin color darkens.
Hives might not cause any discoloration on darker skin, so be alert for raised patches or welts—those could be a sign of urticaria. If you have shortness of breath, throat tightening, or tongue ...
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Dark skin is a type of human skin color that is rich in melanin pigments. [1] [2] [3] ... While high UV radiation can cause skin cancer, the development of cancer ...
Melanin is a dark pigment primarily responsible for skin color. Once synthesized, melanin is contained in special organelles called melanosomes which can be transported to nearby keratinocytes to induce pigmentation. Thus darker skin tones have more melanosomes present than lighter skin tones.