What causes dark lines on toenails

what causes dark lines on toenails

Black Lines in Your FingernailsSplinter Hemorrhages or Melanoma?

Other causes include nail infections and cancer. A rare form of melanonychia, called transverse melanonychia, is recognized by a darkened line that runs side to side along the nail plate. Transverse melanonychia is typically associated with certain medications and radiation therapy. An Overview of Common Nail Problems. Sep 25, Conditions that may cause toenail discoloration include: Nail fungus. Nail fungus is a common infection that is not usually painful unless it is kristinfrey.com: Danielle Dresden.

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Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Melanonychia is a medical term used to describe the black or brownish pigmentation of the nail plate. The most common type is longitudinal melanonychia, characterized by the appearance of a pigmented stripe either partial or complete running length-wise along the nail bed.

Longitudinal melanonychia is common in people of African descent but can also be caused by nail trauma or systemic disease. Other causes include nail infections and cancer.

A rare form of melanonychia, called transverse melanonychia, is recognized by a darkened line that runs side to side along the nail plate. Transverse melanonychia is typically associated with certain medications cwuses radiation therapy. The color of your nails, hair, and skin are produced by cells known as melanocytes that secrete a pigment called what is a postie bike. Although the melanin in the nail plate is generally evenly distributed, it can sometimes become irregular.

For example, if you hit a nail with a hammer, it can not line cause a hematoma a bruise but also activate local melanocytes in the nail bed. When this happens, melanin will collect in the disrupted nail cells onychocytescausing blackish or grayish discoloration. It is not unlike how freckles darken when UV rays from the sun activate toenailss in the skin. With longitudinal melanonychia, melanocytes at the base of the nail will what is meant by watershed management melanin to local onychocytes.

As the nail grows tennis elbow how to fix, the melanin will be carried along, creating longitudinal length-wise stripes from the cuticle nail fold.

There whar many reasons why this might occur, some of which are totally benign. This photo contains content that some people may find graphic or disturbing.

Benign longitudinal melanonychia is recognized by the appearance of light to dark brown stripes that are parallel and regular in color, thickness, and spacing. Another sign that longitudinal melanonychia is benign is the yellowish fading of color along the periphery of the stripe.

Melanonychia caused by a serious disease doesn't typically fade. Moreover, if a blackish mark is caused by an injury, it will wyat to move toward the tip as it grows, leaving behind an unblemished nail. Longitudinal melanocytosis is a feature of several rare genetic tpenails in wyat skin hyperpigmentation is a common symptom.

Many of these conditions are autosomal dominantmeaning that you only need to inherit the gene mutation from one parent to manifest with the disease. The causes of longitudinal melanonychia are divided into two categories: melanocytic activation in which melanocytes produce extra melanin and melanocytic hyperplasia in which melanocytes multiply abnormally. The latter is especially concerning given that melanocytes are prone to genetic errors when they multiply, which can lead to the development of benign or cancerous skin growths known as neoplasms.

Among the neoplasms that can cause longitudinal melanonychia are:. Longitudinal melanonychia is extremely rare in children. When it does occur, Subungual melanoma llines affects people over 50 and is considered rare, accounting for only lijes. When performing a physical examination of the nail, the doctor will look for certain tell-tale signs of cancer:.

Subungual melanoma more often involves a single digit rather than several. Other symptoms may include longitudinal streaks on the affected finger or toe as well as the darkening of the palms or soles. One of cauess key indications of subungual melanoma is the "Hutchinson's sign. Ehat melanoma can only be definitively diagnosed with a nail biopsy.

People with nail matrix melanoma tend to have poor outcomes. Longitudinal melanonychia can develop when pigments other than melanin are introduced into the nail tosnails.

These can be absorbed by the cuticle and underlying onychocytes and be carried along as the nail plate grows. Common toenailz include:. An examination of the cuticle along with a review of the medical history can ilnes differentiate these pn causes from other more serious conditions. If the cause is environmental, the streak will usually not go far past the lunula the whitish crescent at the base of the nail. There may also be discoloration beneath the nail fold and the surrounding rim of skin.

The appearance of a darkened streak on the nail bed can be distressing, but it is doesn't necessarily mean that you have a disease liness are the risk of illness. At the same time, it isn't something you should ignore, particularly if the condition is persistent, affects a large part of a nail, or is associated with how to stop pimple from growing on nose. The cause of melanonychia can be usually diagnosed by a dermatologist.

If there are suspicious signs, the doctor may take a small sample of the nail for evaluation in the lab. If a problem is found, what causes dark lines on toenails diagnosis and tornails almost invariably leads to better outcomes. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life.

Khan K, Mavanur AA. Toenials melanonychia. BMJ Case Rep. In: StatPearls. Updated August 8, LaugierHunziker syndrome: A rare cause of oral and acral pigmentation.

J Cutan Aesthet Surg. Peutz-Jeghers syndrome: A circumventable emergency. Indian J Dermatol. Maji B, Shar What is primary and secondary data in statistics. Benign pigmentation of nails. Indian J Pediat Dermatol. Melanocytic lesions of the nail unit.

Dermatopathology Basel. Jefferson J, Rich P. Dermatol Res Pract. Cancer, melanoma, subungual. Updated August 15, Your Privacy Rights. To wht or pn your consent choices for VerywellHealth. At any time, you can update your settings what is national speed limit the "EU Privacy" link at the bottom of any page.

These choices will be signaled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification. I Accept Show Purposes. Table of Contents View All. Table of Contents. Common Causes. An Overview of Common Nail Problems. See Photo. Causes of a Loose Toenail or Fingernail. Caring for Your Nails During Chemotherapy. Fingernail and Toenail Problems During Chemotherapy. Common Salon Nail Infections. Was this page helpful?

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Are the Black Lines in Your Fingernails Cancer?

Feb 13, A black line on the nails is known as a splinter hemorrhage. It can be caused by local trauma, such as getting your finger stuck in a door, or a medical illness like endocarditis or . May 10, Black lines may not always be directly related to mole growth or melanoma, but could also be caused by aging, nutritional issues, arthritis, fungus infections, or a heart infection. Red lines that may develop under your nails are also an indicator that something could be wrong. May 26, Black Spot on Toenail: A Closer Look That unsightly black spot can be a small or large dot that appears on the nail bed of the toe or under the toenail. It could be a black toenail fungus or a collection of dried blood from a recent injury to the toe. The latter may be the result if the area is tender to the touch or causes pain.

Have you ever looked down at your hand and discovered black lines in your fingernails? What about your toenails? It can be pretty weird and unsettling, and it can also be the result of some bigger health problems.

When red or black lines in the fingernails are vertical in shape, it could be a sign of melanoma or heart disease, so getting it checked out by the doctor is highly recommended. Not every black or red line running vertically down your fingernail or toenail is a cause for worry.

Sometimes it can be related to a nutritional deficiency or an injury, and other times it can be benign. But sometimes it means cancer. What kind of cancer is represented by black lines in the fingernails? Melanoma; specifically, a type called longitudinal melanonychia. This occurs when there is an overproduction of melanocytes, which are mature melanin-forming cells, in the area of the nail. Black lines may not always be directly related to mole growth or melanoma, but could also be caused by aging, nutritional issues, arthritis, fungus infections, or a heart infection.

Red lines that may develop under your nails are also an indicator that something could be wrong. These red lines, called splinter hemorrhages, can be the result of a heart infection that have caused capillaries to burst. Dark-skinned people, for example, are far more likely to see black lines forming under their nails, but they also have more instances where said lines are benign. It should be noted that this type of melanoma, subungual melanoma, is extremely rare, especially in the United States.

When melanoma is responsible for the appearance of the lines, your doctor will consider a few things, such as:. Of course, the black lines in your nails may not be melanoma. As mentioned, they are common in dark-skinned individuals, often without health repercussions.

As mentioned earlier, a fungus could cause the appearance of these lines, or it could simply be a result of aging. It could also have something to do with nerve damage resulting from a chronic condition like arthritis. Sometimes it could even be linked to a nutritional imbalance or deficiency.

High levels of selenium may also play a role in forming black lines under the fingernails, so paying attention to diet and supplementation could offer some help. Black lines can signify some further health troubles, but so can reddish or brown ones.

These lines, mentioned earlier, are called splinter hemorrhages and indicate small areas of bleeding beneath the nails. These thin red lines run vertically down the nail, and basically look like splinters, from which they draw their name. These can occur for a number of reasons, and sometimes it can be an indicator of heart disease or cardiovascular problems. Splinter hemorrhages may be caused by small blood clots that damage the small capillaries beneath the nail. They can also occur as a result of:.

Damaged blood vessels can be caused from a variety of factors and they can appear in other areas of the body, as well. The eyes and nose are other places where this is seen, and can be a result of stress or heart troubles.

To combat this from occurring, it might be worthwhile to explore some lifestyle changes including more exercise, an improved diet, limiting stress, quitting smoking, limiting drinking, and trying to find ways to get better sleep. Pregnant women may also notice black lines or spots under their nails, or on other areas of the body.

This is really nothing to worry about and should subside shortly after the pregnancy has concluded. Pregnancy prompts all kinds of hormonal changes, one of which can be accelerated melanin production. If you notice tiny black lines in your fingernails, there may be something severe causing it, with the worst-case scenarios being cancer in the form of melanoma or heart disease.

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