Melanonychia is the term for dark pigmentation of the fingernails or toenails. The discoloration can be a natural occurrence in people with dark skin, but it may sometimes indicate health issues. Melanonychia is a nail condition in which melanin is present in the nail plate.
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What does it mean when your nail beds turn dark?
Not having enough vitamin B-12 can cause nails to turn dark, thin and possibly spoon shaped. Your doctor may want to perform some tests to check for nutrition problems or an illness. Fungus infections of the fingernails can also turn the nails brown or yellow.
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What deficiency causes dark nails?
2 Nail changes in vitamin B12 deficiency present as hyperpigmentation of nails like bluish discoloration of nails, blue-black pigmentation with dark longitudinal streaks, and longitudinal and reticulate darkened streaks. The nail pigmentation associated with B12 deficiency is more frequent in patients with dark skin.
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Is it normal to have dark nail beds?
Melanonychia is the term for dark pigmentation of the fingernails or toenails. The discoloration can be a natural occurrence in people with dark skin, but it may sometimes indicate health issues. Melanonychia is a nail condition in which melanin is present in the nail plate.
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What deficiency causes dark nails?
2 Nail changes in vitamin B12 deficiency present as hyperpigmentation of nails like bluish discoloration of nails, blue-black pigmentation with dark longitudinal streaks, and longitudinal and reticulate darkened streaks. The nail pigmentation associated with B12 deficiency is more frequent in patients with dark skin.
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Why is my nail bed changing color?
Nail discoloration, in which the nails appear white, yellow, or green, can result from different infections and conditions of the skin. In about 50% of cases, discolored nails are a result of infections with common fungi that can be found in the air, dust, and soil.
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Why are my nails turning dark?
The most common causes of yellow or brown fingernails are the frequent use of nail polish and cigarette smoking. Taking a break on the polish or quitting smoking may allow the dark nail to grow out as the new nail comes in.
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What does vitamin deficiency nails look like?
If you have a vitamin or mineral deficiency, it can show up as dry, cracked, brittle, and irregularly shaped nails.
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Does vitamin D deficiency affect nails?
Vitamin D regulates calcium levels in the body which is an essential contributor to having healthy nails. If you find yourself with brittle and weak nails, it could mean a lack of Vitamin D.
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Does lack of B12 affect nails?
Vitamin-B12 deficiency can present with glossitis, pigmentary changes of nails, hairs, and skin or more serious features like megaloblastic anemia and neuropsychiatric symptoms. [2] Neuropsychiatric features, though rare, can become irreversible in severe and prolonged deficiency.
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