21st November 2019

medicalnewstoday

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What does black streaks in fingernails mean?

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Another cause of black lines on the nails is a splinter hemorrhage, which occurs when blood vessels under the fingernail are damaged, often due to injuries, such as hitting. More seriously, a black line or lines on the nails can indicate the presence of melanoma, a dangerous form of skin cancer.

What do lines on fingernails mean?

Having vertical (longitudinal) ridges on the fingernails refers to the presence of tiny raised lines or ridges that run up and down the length of the nail. Ridges are among the different kinds of nail abnormalities that can develop due to aging, nail injury, or trauma, or underlying medical conditions.

What causes black splinters under fingernails?

Splinter hemorrhages look like thin, red to reddish-brown lines of blood under the nails. They run in the direction of nail growth. The hemorrhages may be caused by tiny clots that damage the small capillaries under the nails. Splinter hemorrhages can occur with infection of the heart valves (endocarditis).

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Why do I have black lines on my nails?

Black line on the nail. A narrow black line that has formed vertically underneath your nail is called a splinter hemorrhage. It occurs for a variety of reasons and may be harmless or a sign of a more serious health condition. The condition is caused by damaged small blood vessels underneath your nail.

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What does it mean if you have black fingernails?

Not having enough vitamin B-12 can cause nails to turn dark, thin and possibly spoon shaped. Dark spots or streaks rather than full discoloration of the nails may be caused by bruising, psoriasis, melanoma (a type of skin cancer), chronic infections, and medications such as from cancer chemotherapy.

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What is the cause of black nails?

Fungal infections: While these often look white or yellow, fungal infections can sometimes cause black toenails from debris buildup. Such spots can also occur underneath nail beds. Trauma: Usually caused by an injury, trauma to the toenail can cause the blood vessels beneath a nail to break.

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What is longitudinal Melanonychia?

Melanonychia is characterised by brown to black discolouration of a finger or toe nail. Longitudinal melanonychia describes a pigmented band and is due to melanin within the nail plate. Longitudinal melanonychia is most often benign and arises from a pigmented melanocytic naevus (a mole) or a lentigo (a freckle).

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What is the meaning of Melanonychia?

Melanonychia is brown or black pigmentation of the nail unit. Melanonychia commonly presents as pigmented band arranged lengthwise along the nail unit, and this presentation is known as longitudinal melanonychia (LM) or melanonychia striata.

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What is the meaning of discolored nails?

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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What is Beau's lines of the nail?

Beau's lines are deep grooved lines that run from side to side on the fingernail or the toenail. They may look like indentations or ridges in the nail plate. This condition of the nail was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described it in 1846.

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How do you get blood out from under a fingernail?

To remove blood from under a nail:

Straighten a paper clip, and heat the tip in a flame until it is red-hot.
Place the tip of the paper clip on the nail and let it melt through.
Do not push or apply pressure on the paper clip.
Go slowly, and reheat the clip as necessary.

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What is the cause of subungual melanoma?

Melanoma of the nail unit usually affects either a thumb nail or great toenail but any finger or toenail may be involved. The term includes: Subungual melanoma (melanoma originating from the nail matrix) Ungual melanoma (melanoma originating from under the nail plate)

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What is melanoma of the nail?

Hidden melanomas include: Melanoma under a nail. Acral-lentiginous melanoma is a rare form of melanoma that can occur under a fingernail or toenail. It can also be found on the palms of the hands or the soles of the feet. It's more common in blacks and in other people with darker skin pigment.

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What is the cause of ridges in the fingernails?

It depends on the direction of the nail ridges. Vertical nail ridges, which are fairly common, extend from the cuticle to the tip of your nail. If your fingernails change color or you develop horizontal nail ridges across your nails, talk to your doctor. These changes could indicate an underlying health condition.

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What color are nails?

Healthy fingernails and toenails should generally be a pink color - with the healthy nail plate being pink, and the nail being white in color as it grows off the nail bed. Fingernail color and condition changes are rarely the first clue of serious illness.

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What is acral lentiginous malignant melanoma?

Acral lentiginous melanoma is a kind of lentiginous skin melanoma. Melanoma is a serious skin cancer that arises from pigment cells (melanocytes). Acral lentiginous melanoma is observed on the palms, soles, under the nails and in the oral mucosa.

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What is a splinter hemorrhage?

Splinter hemorrhages (or haemorrhages) are tiny blood clots that tend to run vertically under the nails.

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Is melanoma skin cancer?

Melanoma is a cancer that develops in melanocytes, the pigment cells present in the skin. It can be more serious than the other forms of skin cancer because of a tendency to spread to other parts of the body (metastasize) and cause serious illness and death.

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What does it mean when you have a line in your toenail?

Toenail ridges usually aren't a serious problem, but they could signal an underlying disease. Vertical toenail ridges are tiny, raised lines or ridges that run up and down the length of the nail. Vertical toenail ridges, especially when they are spaced evenly across the whole nail, are usually harmless.

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What vitamin deficiency causes Beau's lines?

Koilonychia is associated with iron deficiency and protein deficiency, especially deficiency of sulfur-containing amino acids. Beau's lines are transverse depressions in the nail plate caused by temporary cessation of nail growth. Researchers have proposed severe zinc deficiency as a cause of Beau's lines.

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Why do I have pitted nails?

Nail pitting is often a sign of another condition that can include: psoriasis, which causes skin inflammation. eczema, a long-term skin condition that makes the skin red, itchy, and cracked. reactive arthritis or inflammation caused by an infection elsewhere.

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What do pitted nails mean?

Pitting of the nails, typically the fingernails, is characterized by depressions in the surface of the nail. Nail pitting is caused by defective development of the layers of the superficial nail plate. It is common in patients with psoriasis and can affect up to 50% of people suffering from this condition.

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Can thyroid problems cause nail changes?

Kidney disease can cause a build-up of nitrogen waste products in the blood, which can damage nails. Liver disease can damage nails. Thyroid diseases such as hyperthyroidism or hypothyroidism may cause brittle nails or splitting of the nail bed from the nail plate (onycholysis).

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