Isla Bennett
The disappearance of fingernails can be caused by various factors, including trauma, vitamin deficiency, and underlying medical conditions. In some cases, it may be a congenital or acquired condition, causing discomfort and cosmetic concerns. Certain occupations that require frequent hand-wetting or chemical exposure also increase the risk of nail problems. While nail abnormalities can indicate potential health issues, they may also be asymptomatic and not always indicative of a serious problem. Treatment methods for disappearing nails include wearing gloves and various pharmacological approaches.
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What You'll Learn
Onycholysis, or nail lifting
Onycholysis is often caused by an injury to the nail or the area where the nails start to grow (nail matrix). This can be caused by bumping or hitting the nails, wearing ill-fitting shoes, or keeping the nails in water for too long. Regular manicures can also cause onycholysis due to the force applied when trimming, buffing, and polishing the nails. Even tapping your nails on a hard surface over a long period can cause onycholysis.
Chemical exposure can also cause onycholysis. Chemicals found in nail polish, nail gloss, nail hardeners, nail polish removers, and artificial nails can all cause the nail to lift from its bed. Additionally, exposure to certain medications, such as chemotherapy drugs, oral retinoids, and medications that cause light sensitivity, can also lead to onycholysis.
Fungal infections are another common cause of onycholysis. These infections occur when fungi get between the nail and the nail bed, usually through cracks or cuts in the fingers or toes. Fungal infections cause the nails to thicken and turn yellow, and they may also show white spots and streaks.
Certain medical conditions, such as psoriasis, eczema, lichen planus, thyroid disease, and iron deficiency, can also increase the risk of onycholysis. Pregnant women are also more prone to developing nail lifting.
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Accessory/double nail, a rare condition
Accessory/double nail, also known as nail unit resection, is an extremely rare condition that can cause pain, discomfort, and cosmetic concern. It is a type of surgical pathology that can affect the middle finger of the hand or the toes. Most cases are detected incidentally, and only a few patients seek medical help due to the discomfort and pain or for cosmetic reasons.
The accessory nail should be removed surgically to alleviate pain and discomfort and for cosmetic purposes. Histopathology should be performed after the surgical excision to ensure complete removal and prevent recurrence. The procedure can be easily performed under local anesthesia.
The condition can be congenital or acquired, and it may run in families. However, most patients cannot provide information regarding heredity or any previous trauma. In some patients, the accessory nail causes symptoms, while in others, it is asymptomatic, depending on the patient's profession and the type of footwear or handwear used.
Although descriptions of double nails are rare in the literature, they have been observed in dermatological practices in several countries, including Germany, Norway, the Netherlands, Switzerland, Belgium, Portugal, Thailand, and Benin. The condition can cause diagnostic confusion due to its rarity, so thorough documentation of symptoms and patterns of occurrence is essential.
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Iron deficiency, causing spoon-shaped nails
Spoon-shaped nails, or koilonychia, are often a sign of iron deficiency. This condition can be caused by malnutrition, chronic blood loss, malabsorption, or an underlying medical condition such as lupus, heart disease, or celiac disease. People with autoimmune diseases are also more likely to develop spoon-shaped nails.
The pathogenesis of koilonychia is not entirely understood, but it may be related to reduced iron in iron-containing enzymes in epithelial cells or poor blood flow, which weakens and depresses the underlying nail-connective tissue. This can lead to nails that are thin, soft, and brittle, with an indented shape that resembles a spoon. In some cases, the nail may crack, and the outer part may detach from the nail bed.
Spoon-shaped nails are typically found on fingernails, but they can also occur on toenails. They may affect just one nail, several nails, or all nails. While spoon nails in adults often indicate a nutrient deficiency or medical condition, they are fairly common in infants and usually flatten as the child grows.
If you notice that your nails have taken on a spoon-like shape, it is recommended that you consult a healthcare professional. A doctor can perform a physical examination, review your medical history, and conduct blood tests to determine if iron deficiency or another underlying condition is causing your spoon-shaped nails.
Treating the underlying cause of spoon-shaped nails is essential. For iron deficiency, this may involve dietary changes or iron supplements to increase iron intake. Eating iron-rich foods, such as meat, beans, lentils, dark chocolate, fortified bread, iron-rich fruits, leafy greens, nuts, and seeds, can help prevent and correct spoon-shaped nails. In some cases, vitamin C can also aid in improving iron absorption.
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Yellow nails, indicating infection or product reaction
Yellow nails are usually an indication of an infection or a product reaction. Nails can become infected when bacteria enter broken skin near the cuticle and nail fold. This condition is called paronychia and is treated with antibiotics. In some cases, paronychia can be caused by irritation from certain chemicals or frequent manicures and pedicures.
Another common cause of yellow nails is a fungal infection called onychomycosis, which can be treated with antifungal medication. However, oral and topical antifungals are not always effective, and recurrence of nail fungus is common. To prevent nail discoloration, it is important to practice good nail hygiene and be mindful of the tools used in nail salons and spas, as they can spread fungal infections.
In some cases, yellow nails can be a symptom of an underlying health condition. For example, they may indicate thyroid conditions, psoriasis, diabetes, or even skin cancer. Additionally, vitamin or mineral deficiencies can cause nails to appear yellow, and introducing a multivitamin supplement may help resolve the issue.
If you are experiencing yellow nails, it is recommended to consult a healthcare professional, such as a dermatologist or podiatrist, to determine the underlying cause and receive appropriate treatment.
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Beau's lines, or deep grooves in the nail
Beau's lines are horizontal ridges or deep grooves that appear in one or more of your fingernails or toenails. They are a sign that an illness, injury, or skin condition interrupted your nail growth. Beau's lines are not a disease in themselves and are usually harmless. They indicate that you had an illness or sustained nail damage a few weeks or months ago.
The appearance of Beau's lines can vary. A single Beau's line on one nail may indicate an injury that affected only one finger or toe. Beau's lines on all of your nails can mean that an illness or stress caused them. Multiple Beau's lines on each nail may mean that an illness or trauma happened more than once. Thicker Beau's lines may be a sign that an illness or trauma lasted a longer period of time.
There are many possible causes of Beau's lines, including illnesses, infections, and injuries. Some common illnesses that can cause Beau's lines include heart attacks, high fevers, strep infections, hypothyroidism, peripheral artery disease, and Raynaud's phenomenon. Chronic conditions that interfere with blood flow to the nail matrix, such as peripheral artery disease, can also lead to the development of Beau's lines. Skin conditions, such as eczema or psoriasis, and severe zinc deficiency or protein deficiency can also result in Beau's lines.
Additionally, trauma or damage to the nail matrix can cause Beau's lines. For example, dropping something heavy on your finger or toe, slamming your finger in a door, or exposure to extreme cold can lead to the formation of Beau's lines. Certain nail practices, such as manicures or the use of artificial nails, can also contribute to their development. Mental and emotional stress, such as severe life events or job loss, can affect nail health and growth, resulting in Beau's lines.
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Frequently asked questions
There could be several reasons for this, including injury, infection, or onychomadesis, which is when something causes your nails to stop growing for a period of time.
If you experience onychomadesis, you will notice a deep groove or gap running the width of your nail. This is because something has caused your nail growth to slow or stop temporarily.
Onychomadesis can be caused by a number of factors, including fever, injury, chemotherapy, or major stress.
Yes, a condition called onycholysis can cause the nail plate to lift and detach from the skin underneath. This can lead to the disappearance of the nail bed if left untreated.
There is a rare condition called an accessory or double nail, where an extra nail grows alongside the normal nail. This is usually surgically removed due to pain, discomfort, or cosmetic concerns.
