Sophia Delgado
White nails, also known as leukonychia, can be indicative of a range of conditions, from anemia and weak nails to more serious issues like kidney disease, heart disease, and diabetes. White spots or lines on the nails are usually caused by minor injuries, such as biting your nails or slamming your fingers, resulting in air getting trapped within the nail. However, they can also be a sign of zinc or calcium deficiency, fungal infections, or allergic reactions. While rare, white nails can also be associated with more severe health conditions, so it is always advisable to consult a healthcare professional if you have concerns.
| Characteristics | Values |
|---|---|
| Common name | White nail, Leukonychia |
| Description | Partial or full discolouration of the nail plate on one or more fingernails or toenails |
| Cause | Injury to the nail matrix, fungal infection, zinc deficiency, calcium deficiency, allergic reaction, genetic mutation, or an underlying health condition |
| Treatment | No treatment for trauma-related leukonychia, underlying cause must be addressed |
| Prevention | Avoidance of trauma to the nail, avoidance of irritating substances, appropriate protective equipment, minimising nail-biting and picking, appropriate footwear, moisturisers |
| Diagnosis | Dermoscopy, nail clipping, nail biopsy, blood test |
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What You'll Learn
White nails can be a result of injury or trauma to the nail matrix
White nails, or leukonychia, can be the result of injury or trauma to the nail matrix. The nail matrix is the tissue inside the cuticle at the base of the nail where new nails are formed. It is responsible for nail growth and is vulnerable to damage and disease.
Injuries to the nail matrix can be caused by pinching or crushing the finger or dropping something heavy on the toe. Nail biting, manicures, and other habits can also cause trauma to the nails. Repeated trauma to toenails, such as from ill-fitting shoes, can lead to deformities in the nails.
When the nail matrix is injured, there may be bruising, ridges, or discolouration. In some cases, the nail may fall off. The appearance of the nail may be affected, with ridges or splits developing. White nails can be a sign of trauma-induced leukonychia, which can occur when air gets trapped within the nail plate, resulting in a white appearance.
If you notice any changes to your nails, such as discolouration, pain, or swelling, it is important to see a doctor as soon as possible. They can examine the nail trauma and determine the best course of action. In some cases, X-rays or other diagnostic tests may be necessary to rule out more serious conditions.
It is important to note that white nails can also be indicative of other conditions, such as anaemia, overuse of nail polish, weak nails, kidney disease, heart disease, diabetes, rheumatoid arthritis, or liver disease. Therefore, it is always advisable to consult a healthcare provider if you have any concerns about your nail health.
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White nails can indicate an underlying health condition such as liver disease or diabetes
White nails, also known as leukonychia, are the partial or full discolouration of the nail plate on one or more fingernails or toenails. The nail loses its general pink undertone and appears white. White nails can be indicative of an underlying health condition, such as liver disease or diabetes.
Liver disease can cause curved or "clubbed" nails, which happen when fingertips enlarge and the growing nails curve around them. This process is gradual and may develop over several years. It could also be inherited. Terry's nails, a type of nail discolouration, is often associated with liver failure or cirrhosis. The nails look white or washed-out with a thin reddish-brown strip near the tip. Terry's nails are also associated with a higher risk of liver cirrhosis, congestive cardiac failure, or diabetes.
Diabetes can cause nail infections with yeasts or fungi, usually affecting toenails. White, yellow, or greenish discolouration and thickening at the end of the nail spread gradually to involve the whole nail, which may become thick and brittle. The distorted nail can become sharp or break off and cause injury to neighbouring toes. People with advanced diabetes show dilated capillaries, although changes may not be seen early in the disease. Nail infections are a significant predictor of diabetic foot ulcers.
Other potential causes of white nails include zinc or calcium deficiency, fungal infections, allergic reactions, or injury. White nails can also be congenital, inherited recessively, or dominantly due to a mutation in the phospholipase C delta-1 gene.
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White nails can be a sign of zinc or calcium deficiency
White nails, also known as leukonychia, are usually harmless and acquired through injury or trauma. However, in rarer cases, they can be indicative of zinc or calcium deficiency.
Zinc is an essential nutrient that contributes to hair, skin, and nail health. A zinc deficiency can cause nail dystrophy, which is the discolouration and distortion of nails. This can include brittle nails, slower nail growth, and lines appearing on the nail. A diet rich in zinc, such as one that includes whole grains, poultry, beans, and beef, can help increase zinc intake.
Calcium deficiency can also lead to more significant changes in the nails, such as increased brittleness and alterations in nail shape. However, it is important to note that white spots on nails are not always a sign of calcium deficiency or any other nutritional deficiency.
Other causes of white nails include allergies, fungal infections, heavy metal poisoning, and inflammatory skin diseases like nail psoriasis and hand eczema. In some cases, white nails can also be indicative of more serious underlying health conditions, such as anemia, kidney disease, heart disease, diabetes, rheumatoid arthritis, or liver disease.
If you are concerned about the appearance of your nails, it is always best to consult a doctor or a healthcare professional for proper diagnosis and treatment.
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White nails could be caused by fungal infections
White nails, also known as leukonychia, are often acquired through injury or trauma, such as biting your nails, jamming your fingertips, or manicures. However, in some cases, white nails can be indicative of fungal infections, which can cause serious health issues.
Fungal nail infections, or onychomycosis, are usually caused by various species of fungi, with Trichophyton rubrum being the most common. These fungi thrive in warm, dark, and moist environments, such as the feet, and can easily spread in communal areas like showers, locker rooms, and gyms. Walking around barefoot in such places increases the risk of contracting a fungal infection. Additionally, wearing trainers for extended periods can create favourable conditions for the fungi by keeping the feet constantly warm and damp.
Fungal nail infections typically start at the edge of the nail and gradually spread. The infection causes the nail to thicken, distort, and become brittle, with pieces potentially breaking off. The nail may also turn white or yellow. While toenails are more commonly affected than fingernails, it is important to address any signs of infection to prevent further complications.
The treatment for fungal nail infections depends on the severity of the condition. Mild cases may not require treatment, while more severe infections may be treated with antifungal medication, either in the form of tablets or a special paint applied directly to the nail. Laser treatment is another option for stubborn infections, but it is not currently available on the NHS. To confirm the presence of a fungal infection, a small sample of the infected nail may be taken for testing. Additionally, blood tests may be necessary to monitor liver function during treatment.
It is important to note that white nails can be a sign of other underlying health conditions, such as liver disease, kidney disease, or diabetes. Therefore, if you notice frequent or widespread leukonychia or lines running through your nails, it is advisable to consult a healthcare professional for a thorough evaluation.
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White nails can be inherited
White nails, or leukonychia, can be inherited. Congenital leukonychia is more commonly inherited recessively, although dominant patterns are also possible. This is due to a mutation in the phospholipase C delta-1 gene, which causes all nails to appear milky and porcelain white.
Leukonychia can be classified by its underlying pathology, distribution, or how it develops. True leukonychia is discolouration due to abnormal nail plate keratinisation, whereas apparent leukonychia is secondary to disease of the nail bed. This distinction is important in the classification and interpretation of leukonychia.
True leukonychia occurs when white spots form at the nail matrix, the beginning edge of the nail located under the skin of the finger before the visible part of the nail. These spots appear in the hard part of the nail, known as the nail plate. Apparent leukonychia, on the other hand, occurs when white spots form on the skin beneath the nail, or the nail bed, rather than on the nail itself. These spots fade when pressure is applied to the nail and do not move as the nail grows.
Punctate leukonychia, the most common type of leukonychia partialis, is characterised by a few white spots about the size of a pen point. It is often caused by minor trauma to the nail, such as nail biting, manicuring, knocks, or tight footwear. Striate leukonychia, also known as Mees lines or transverse leukonychia, may follow damage to the nail matrix, resulting in furrows and ridges.
While white spots on nails are often harmless and caused by injury or trauma, they can sometimes indicate a more serious underlying health condition, such as liver disease, kidney disease, or diabetes. Therefore, it is important to consult a healthcare provider if you have frequent or widespread leukonychia or lines running through your nails.
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Frequently asked questions
White nails can be indicative of any or a combination of conditions, including anemia, overuse of nail polish, weak nails, kidney disease, heart disease, diabetes, rheumatoid arthritis, and liver disease. It could also be a result of trauma or injury to the nail.
White spots on the nails are common and usually do not indicate a serious problem. They are generally caused by an injury, such as striking the fingertip or repeated trauma to the nails from frequent manicures. Other potential causes include zinc or calcium deficiency, fungal infections, or allergic reactions.
White lines on the nails, known as leukonychia, can be associated with variable blood flow or an underlying health condition. If you notice persistent or widespread leukonychia, it is recommended to consult a healthcare provider for further evaluation.
This condition is known as Terry's nails and can be associated with aging or underlying health issues such as diabetes, kidney disease, liver disease, or heart disease.
The presence of other colours on the nails, such as yellow or greenish spots, may indicate nail separation from the nail bed due to injury or infection. In some cases, it could be linked to underlying health conditions such as psoriasis, lung disease, or other illnesses.
