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Estrogen also rises during pregnancy, and that, combined with progesterone, can contribute to the formation of melasma, which appears as dark brown spots or patches.
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 ...
Liver cirrhosis is another cause, though through lowered metabolism of estrogen, not oversecretion or overconsumption like the aforementioned. It's necessary to know there exist two kinds of hyperestrogenism: Absolute (more concentration than usual of estrogen) and relative (a normal concentration of estrogen, higher with respect to progesterone).
The exact cause of melasma is unknown, says Dr. Robert Finney, MD, a board-certified dermatologist in New York City. But it’s believed to result from the skin’s pigment-producing cells being ...
The symptoms of melasma are dark, irregular, well-demarcated, hyperpigmented macules to patches. These patches often develop gradually over time. Melasma does not cause any other symptoms beyond the cosmetic discoloration. [4] Patches can vary in size from 0.5 cm (0.2 in) to larger than 10 cm (4 in) depending on the person.
Melanoma is the most dangerous type of skin cancer; it develops from the melanin-producing cells known as melanocytes. [1] It typically occurs in the skin, but may rarely occur in the mouth, intestines, or eye (uveal melanoma). [1] [2] In women, melanomas most commonly occur on the legs; while in men, on the back. [2]
Melasma is a skin condition characterized by a darkening of the skin. ... Pregnancy can cause estrogen and progesterone levels to increase, which can also lead to the occurrence of melasma in some ...
It is normally found in the elderly (peak incidence in the 9th decade), on skin areas with high levels of sun exposure like the face and forearms. Incidence of evolution to lentigo maligna melanoma is low, about 2.2% to 5% in elderly patients. It is also known as "Hutchinson's melanotic freckle". [3] This is named for Jonathan Hutchinson.