Sophia Delgado
Our nails can tell us a lot about our health. Many nail abnormalities are harmless, but some may be indicative of a more serious underlying condition. If you have concerns about the appearance of your nails, it is always best to consult a doctor or a dermatologist. Nail abnormalities can include changes in colour, shape, texture, or thickness. For example, white nails, known as leukonychia, can be the result of trauma, anemia, dietary deficiencies, heart or
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What You'll Learn
Nail abnormalities and their causes
The appearance of our nails can reveal a lot about our health. Abnormalities such as spots, discolouration, and nail separation can result from injuries to the fingers and hands, viral warts, infections, some medications, or certain medical conditions.
Beau lines are depressions across the fingernail that can occur after an illness, injury to the nail, eczema around the nail, chemotherapy, or a lack of nutrition. Brittle nails are often a result of aging but can also be caused by low levels of zinc and iron, or thyroid problems.
Koilonychia is a condition where the nails are flattened and have concavities. It is associated with iron deficiency and, in some cases, anemia. Leukonychia is characterised by white streaks or spots on the nails, often due to drugs or disease. It can also occur with arsenic poisoning, heart disease, renal failure, pneumonia, or hypoalbuminemia.
Yellow nail syndrome is a condition in which the nails thicken and turn yellow to yellow-green. It can be accompanied by lymphedema and compromised respiration. Subungual melanoma is a potentially deadly cancer that will normally appear as a dark streak down the length of the nail.
Clubbing is when nails thicken and curve around the fingertips, generally over a period of years. This can be the result of low oxygen in the blood. Pitting is the presence of small depressions on the nail surface, often associated with psoriasis and alopecia areata.
Periungual warts are warts that appear around the nails, and paronychia is an infection around the nail, caused by the yeast-like organism Candida.
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Fingernail ridges and their significance
Fingernail ridges are tiny, raised lines that develop across or up and down the nail. Ridges in your nails may be a sign of a health condition or nutrient deficiency. While they are usually harmless, it is important to pay attention to fingernail ridges and other nail changes as they might be the first signs of a serious medical problem.
Vertical ridges, also known as longitudinal striations or bands, are furrows that run from the tip of your fingernail down to the cuticle. They often develop in older adults due to a slowing of cell turnover. However, if you experience other symptoms like texture changes in your nails, it may be caused by a medical condition.
Horizontal ridges, also known as Beau's lines, may suggest a more serious condition. They can occur after an illness, injury to the nail, eczema around the nail, during chemotherapy for cancer, or when you do not get enough nutrition. Beau's lines can also be caused by certain nutritional deficiencies, such as zinc or iron deficiency.
Other causes of fingernail ridges include skin conditions, stress, kidney disease, thyroid problems, and long-term exposure to moisture or nail polish. If the cause of your fingernail ridges is unclear, a dermatologist may take nail clippings to analyse for signs of infection in a lab. Treatment for fingernail ridges focuses on addressing the underlying cause, which may include altering your diet or taking supplements to boost your nutrient levels.
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The absence of fingernail moons
The half-moon shapes at the base of the fingernails are called lunulae, or fingernail moons. They are usually white and indicate the place where each nail begins to grow, known as the matrix.
An absent lunula can indicate anemia, malnutrition, and depression. Anemia is a condition where red blood cells do not work correctly or the body does not produce enough red blood cells, resulting in an oxygen deficiency that can cause paleness, including the disappearance of the lunulae. Malnutrition, or a lack of proper nutrition, can also cause the fingernail moons to disappear. Additionally, a study found an association between absent lunulae and depression in patients with depressive disorders.
Other conditions that may cause the absence of fingernail moons include vitiligo, a disorder that affects the skin's pigmentation, and kidney failure, which can lead to anemia and subsequent loss of lunulae.
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Yellow nail syndrome
Respiratory symptoms associated with YNS include a chronic cough, sinus infections, pneumonia, and shortness of breath. The syndrome may also be accompanied by pulmonary symptoms such as pleural effusions (fluid accumulation in the membranes surrounding the lungs) and bronchiectasis.
The exact cause of YNS is unknown, and the condition is often misdiagnosed. It is believed to be linked to issues with the circulatory or lymphatic system, which can cause fluid to collect in the soft tissues under the skin. This fluid accumulation may then turn the nails yellow. Some researchers suspect a genetic component, potentially involving the FOXC2 gene, as the condition has been observed to run in families. Other possible contributing factors include titanium exposure, joint replacements, dental implants, and certain medications.
Diagnosis of YNS requires two of the following symptoms: yellow nails, lymphedema, and pulmonary disease. Histopathological examination of nail samples is important to rule out other common causes of yellow nails, such as onychomycosis. A thorough patient history is also crucial in diagnosing this rare syndrome.
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Nail infections and inflammation
Fingernails can reveal a lot about a person's health. Anemia, malnutrition, and depression, for instance, can be indicated by an absent lunula, the rounded shadows at the base of your nails. Azure lunula is a condition in which the moons of the fingernails turn blue. Pyramidal lunula, which is often caused by an improper manicure, occurs when the moons of the fingernails form a triangle shape. Red lunula, or red-coloured moons, can indicate a number of conditions that may significantly impact one's health.
Nail infections, or paronychia, occur when bacteria enter broken skin near the cuticle and nail fold, causing an infection. The cuticle is the skin at the base of the nail, and the nail fold is where the skin and nail meet. Paronychia is treated with antibiotics and, in some cases, pus drainage. It is characterised by pain, swelling, and tenderness around the nail, as well as redness and warmth of the skin. Pus may also build up under the skin.
Paronychia can be caused by a variety of factors, including nail biting, frequent manicures or pedicures, skin conditions, and exposure to water, chemicals, or irritants such as detergents. It can also be caused by certain medications, including retinoids, anti-cancer drugs, HIV medications, and some antibiotics.
In addition to paronychia, other nail abnormalities can indicate underlying health issues. For example, koilonychia is a condition characterised by flattened nails with concavities, which may be associated with iron deficiency or anemia. Leukonychia, or white streaks or spots on the nails, can be caused by drugs or disease. Pitting, or small depressions on the nail surface, is associated with psoriasis and alopecia areata. Beau lines are depressions across the fingernail that can occur after an illness, injury to the nail, eczema around the nail, chemotherapy, or malnutrition.
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Frequently asked questions
There could be several reasons for this. One possibility is a condition called koilonychia, where the nails have raised ridges and curve outward, resembling spoons. This condition is often associated with iron deficiency or anemia. Another potential cause is clubbing, which occurs when there is low oxygen in the blood and can result in thickened nails that curve around the fingertips. It is always best to consult a doctor or dermatologist if you are concerned about any changes in your nails, as they can provide a proper diagnosis and rule out any serious underlying conditions.
Yes, there are several other nail abnormalities that can occur. Beau's lines, for example, are depressions that run across the fingernail and can indicate malnutrition or a serious illness. Leukonychia refers to non-uniform white spots or streaks on the nails, often caused by minor trauma or underlying health issues. Nail pitting, or small depressions in the nail, is common in people with psoriasis or other systemic diseases. Ridges in fingernails are usually a sign of aging, but they can sometimes indicate vitamin deficiencies or health problems like diabetes.
Yes, nail abnormalities can sometimes indicate an underlying health condition that requires medical attention. For example, dark streaks on the nails can be a sign of subungual melanoma, a potentially deadly form of skin cancer. Yellow nails could signal a fungal infection, but in rare cases, they may indicate severe thyroid disease, lung disease, diabetes, or psoriasis. Nails with a bluish tint can suggest a lung problem or that the body isn't getting enough oxygen. Any concerns about nail abnormalities should be discussed with a doctor or dermatologist, who can provide a proper diagnosis.
Nail discoloration can have various causes, including skin cancer, infection, injury, or certain medications. Melanonychia, for instance, is a type of nail discoloration caused by the pigment melanin. White nails, or leukonychia, can result from trauma, anemia, dietary deficiencies, heart or kidney disease, or poisoning. Yellow nails are often a sign of a fungal infection but may also indicate thyroid disease, lung disease, or diabetes in rare cases. Nails with a blue tint can be a sign of oxygen deprivation or emphysema. Any nail discoloration that persists or is accompanied by other symptoms should be evaluated by a doctor.
To prevent nail abnormalities, it is essential to practice good nail care habits. Avoid biting, picking, or tearing at your nails, and if you have a habit, consider seeking help. Keep your nails trimmed and moisturized, and avoid long-term exposure to moisture or nail polish, as this can cause nails to become brittle and peel. If you notice any changes in your nails, consult a doctor or dermatologist, who can recommend appropriate treatments or further evaluations. In some cases, treating any underlying health conditions may help correct nail abnormalities.
