Ava Monroe
White nails, or leukonychia, is a common condition that causes white spots or streaks on your fingernails or toenails. The white colour could be the result of several factors, including trauma, anemia, dietary deficiencies, heart or kidney disease, or even poisoning. In some cases, it may be a sign of an underlying medical condition, such as liver problems or hepatitis. While many nail abnormalities are harmless, it is important to monitor any changes in your nails and consult a doctor if you have any concerns.
| Characteristics | Values |
|---|---|
| Medical term | Leukonychia or leuconychia |
| Description | White spots or streaks on the fingernails or toenails |
| Cause | Injury to the base of the nail (the matrix), infection, allergic reaction, medication side effects, heavy metal poisoning, manicure habits, liver or kidney failure, hypoalbuminaemia, protein malabsorption, protein-losing enteropathies, genetic condition, antibiotics, etc. |
| Types | True leukonychia, apparent leukonychia, pseudoleukonychia, punctate, transverse, longitudinal leukonychia, Mees' lines, Muehrcke's lines, Terry's nails, Lindsay's nails |
| Treatment | White spots caused by injuries will grow out and can eventually be cut off; otherwise, a healthcare provider may recommend tests such as a biopsy or blood test |
| Prevention | Use protective gloves during activities that may damage your fingernails, keep your nails moisturized and trimmed short, avoid irritating chemicals or products |
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What You'll Learn
- Leukonychia, a medical term for white nails, can be caused by trauma, anemia, dietary deficiencies, or poisoning
- White nails can indicate liver problems, such as hepatitis, or even kidney disease
- White spots on nails are usually a result of some form of stress, injury, infection, or allergic reaction
- White spots on nails can also be side effects of medications or allergies to nail products
- The lunula is the white crescent moon shape found at the bottom of finger and toenails, caused by the blocking of pink colour from blood vessels
Leukonychia, a medical term for white nails, can be caused by trauma, anemia, dietary deficiencies, or poisoning
Leukonychia, or white nails, is a medical term for the whitening of the entire nail, which occurs most commonly on all nails. This condition is derived from the Greek words "leuko" meaning white, and "onyx" meaning nail. While white nails are usually harmless, they can sometimes indicate an underlying health condition.
Leukonychia can be caused by a variety of factors, including trauma or injury to the nail plate or the nail matrix, which is the area where the nail grows from. This type of injury is common in children and nail biters and can result in small white spots or bands on the nails. These spots will typically grow out with the nail and disappear within eight months as the nail regrows completely.
In some cases, leukonychia may be caused by anemia, dietary deficiencies, or mineral and vitamin deficiencies. However, the link between dietary needs and recurrent leukonychia has been disputed by some medical researchers. Blood tests can be performed to check for vitamin or mineral deficiencies. Additionally, leukonychia may be a clinical sign of hypoalbuminemia (low albumin), which is associated with nephrotic syndrome, a form of kidney failure.
Poisoning, including heavy metal poisoning from metals like arsenic and lead, can also cause leukonychia. In the case of acute arsenic poisoning, white lines may appear on the nails after 40-60 days. If you suspect heavy metal poisoning, it is important to seek immediate medical attention and undergo appropriate testing.
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White nails can indicate liver problems, such as hepatitis, or even kidney disease
White nails, also known as leukonychia, refer to fingernails that are partially or completely white in colour. While leukonychia can be caused by something as simple as a manicure habit, it can also indicate more serious liver problems, such as hepatitis, or even kidney disease.
Liver problems can cause nails to become mostly white with darker rims. This can be accompanied by jaundice, which is another sign of liver trouble. In some cases, white nails may also indicate liver or kidney failure.
Kidney disease can cause changes in the colour, texture, strength, and shape of nails. For instance, people with kidney disease may develop half-and-half nails, also known as Lindsay's nails, where the bottom half of the nail is white, and the upper half is red or brown. This condition has been observed in 20% to 50% of people with kidney disease and is more common on toenails than on fingernails. The white band at the bottom of the nail may be related to anemia, while the darker band at the top could be due to increased melanin production, which is associated with higher urea levels in the blood.
Another nail abnormality associated with kidney disease is Muehrcke's nails, named after the physician Robert C. Muehrcke, which is characterised by a white streak or pale band forming horizontally across the nail plate. Muehrcke's nails occur when blood flow to the nail bed is restricted. While a single line may not be cause for concern, multiple streaks may warrant immediate medical attention.
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White spots on nails are usually a result of some form of stress, injury, infection, or allergic reaction
White spots on nails, known as leukonychia, are usually a result of some form of stress, injury, infection, or allergic reaction. Leukonychia is a common condition that causes white spots or streaks on your fingernails or toenails. It is derived from the Greek words "leuko" (white) and "onyx" (nail). This condition can occur when the nail experiences some form of stress or injury, such as hitting your nail against a hard surface or wearing shoes that are too tight.
In some cases, leukonychia may be a sign of an allergic reaction to certain nail products, such as nail polish, nail hardener, or fake nails. It is important to note that regular manicures or pedicures can also contribute to this condition due to the force applied during trimming, buffing, and polishing. Additionally, biting your nails or picking at them can be a sign of persistent anxiety and may lead to white spots.
White spots on nails can also indicate an infection. One of the most common causes of nail discolouration is a fungal infection. As the infection worsens, the nail bed may retract, and the nails may thicken and crumble. In some cases, nail discolouration can be a sign of a more serious condition, such as skin cancer, liver disease, or kidney disease. Therefore, it is important to consult a healthcare professional if you are concerned about any changes in your nails.
To prevent white spots from developing on your nails, it is recommended to take protective measures such as wearing gloves during activities that may damage your nails and choosing comfortable and protective shoes. Keeping your nails trimmed short, moisturized, and avoiding irritating chemicals can also help. If you experience additional symptoms such as fatigue, blurred vision, or shortness of breath alongside white spots on your nails, it is important to seek medical advice.
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White spots on nails can also be side effects of medications or allergies to nail products
White spots on nails are usually harmless and rarely indicate a serious medical issue. They are often the result of a nail injury called leukonychia. However, they can also be a side effect of certain medications or allergies to nail products.
Medications
Certain medications can cause white spots to appear on nails. These include chemotherapy, which is used to treat cancer, and sulfonamides, which are used to treat bacterial and urinary tract infections. White spots on nails can also be a sign of heavy metal poisoning from toxic metals like arsenic and lead. If you suspect heavy metal poisoning, it is important to seek medical attention and get tested through a blood test.
Allergies to Nail Products
Allergies to nail products are another potential cause of white spots on nails. Your immune system may interpret certain nail products as allergens, leading to an allergic reaction. Common nail products that can cause allergies include nail polish, nail gloss, nail hardener, nail polish remover, and fake nails. The chemicals used in the application and removal of acrylic or gel nails can also damage your nails and cause white spots. If you suspect an allergy to a nail product, it is recommended to stop using the product and consult a doctor if symptoms persist.
Fungal Infections
In addition to medication side effects and allergies, white spots on nails can also be caused by fungal infections. A common nail fungus called white superficial onychomycosis can first appear as small white dots on the nails and then spread to the nail bed, causing the nails to become thick and brittle. Oral and topical antifungal medications are typically recommended to treat nail fungus.
While white spots on nails are usually harmless, it is always a good idea to consult a doctor or dermatologist if you are concerned about the appearance of your nails or if the spots are accompanied by other symptoms.
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The lunula is the white crescent moon shape found at the bottom of finger and toenails, caused by the blocking of pink colour from blood vessels
The lunula is the semi-circular white shape found at the base of finger and toenails. It is a part of the nail matrix, the layer of living tissue at the base of the fingernail from which the nail is formed and grows. The matrix produces keratin protein, which forms the nail. The lunula is the part of the matrix that protrudes from under the flesh of the finger. In some people, it barely protrudes and is only really visible on the thumb and big toe.
The lunula appears white because the epidermis is thicker beneath the matrix, blocking the pink colour from the blood vessels below. This creates the distinctive white crescent moon shape.
The size and appearance of the lunula can vary between individuals. For some, it may be barely noticeable, while for others, it may be more prominent. In some cases, the lunula may not be visible at all, as it can be covered by the nail bed.
The lunula should not be confused with leukonychia, which refers to white spots or streaks on the nails caused by various factors such as injury, infection, or allergic reaction. Leukonychia can manifest as true leukonychia, apparent leukonychia, or pseudoleukonychia, depending on whether the white spots form in the nail plate, the nail bed, or the surface of the nail, respectively.
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Frequently asked questions
White spots on nails are called leukonychia, derived from the Greek words "leuko" meaning white and "onyx" meaning nail.
Leukonychia is most commonly caused by injury to the base of the nail (the matrix) where the nail is formed. It can also be caused by infections, allergies, or even heavy metal poisoning.
Treatment for leukonychia depends on its cause. If it is caused by an injury, the spots will grow out over time and can eventually be cut off. If it is not caused by an injury, a healthcare provider may recommend tests such as a biopsy or blood test to determine the cause.
To prevent leukonychia, it is recommended to protect your nails by wearing gloves during activities that may damage your fingernails, such as playing sports or using tools. It is also important to keep your nails moisturized, trimmed short, and avoid irritating chemicals or products.
