Liam Carter
Yellow nails can be caused by external factors such as nail polish, self-tanner, smoking, or fungal infections. They can also indicate underlying health conditions, including thyroid disorders, rheumatoid arthritis, diabetes, and lung disease. Yellow nail syndrome, a rare disorder characterised by yellow, thickened, and curved nails, can be a sign of respiratory and lymphatic system issues. Treatment options for yellow nails depend on the underlying cause and can include home remedies, oral or topical medications, and, in some cases, consultation with a healthcare provider.
| Characteristics | Values |
|---|---|
| Possible Causes | External factors like nail polish, acrylic nails, smoking, fungal infection, ageing, medication side effects, underlying health conditions, etc. |
| Treatment | At-home remedies, antifungal medications, oral prescriptions, or treatment of underlying health conditions |
| Prevention | Keeping nails clean and trim, using reputable nail salons, avoiding frequent use of nail polish remover, etc. |
| When to See a Doctor | If home remedies don't work, if new nail growth remains yellow, or if other symptoms are present |
| Underlying Health Conditions | Thyroid disorder, rheumatoid arthritis, diabetes, psoriasis, lung disease, yellow nail syndrome, etc. |
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Yellow nail syndrome
The appearance of nails in YNS is varied; changes include a thickened nail plate with exaggerated curvature, yellow discolouration, hardening of the nail, separation of the nail plate and nail bed, and slow growth. The legs are especially affected in YNS, with lymphedema causing fluid buildup and swelling in the lower legs and ankles. The onset of lymphedema may occur around puberty, and areas affected may feel heavy or tight, with decreased flexibility in the hands, feet, wrists or ankles.
Respiratory symptoms are also common in YNS, with almost 2 in 5 people experiencing fluid buildup in the lung tissue (pleural effusions). This can cause shortness of breath, chest pain and a chronic cough. Other respiratory problems may include chronic infection and inflammation of the main air passages (bronchial tubes), destruction and widening of the small air passages out of the lung (bronchiectasis), ongoing inflammation of the membranes that line the sinus cavities (sinusitis), and/or chronic inflammation or infection of the lungs (recurrent pneumonias).
The cause of YNS is unknown, and most people develop the syndrome for no known reason. Some experts believe that it results from issues with the circulatory or lymphatic system, causing fluid to collect in the soft tissues under the skin, which may turn the nails yellow. There may also be a genetic link, with some evidence suggesting a connection between YNS and a mutation of the FOXC2 gene, which is known to cause a similar disorder called lymphedema-distichiasis syndrome.
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Nail fungus
Yellow nails can be caused by various factors, such as staining from nail polish, acrylic nails, or smoking. However, yellow nails can also indicate a fungal infection, which is characterised by thickened, crumbly, and discoloured nails. Nail fungus is more common in toenails than fingernails due to the warm and damp environment created by shoes and socks, providing an ideal environment for fungal growth.
The symptoms of nail fungus include thickening of the nails, discolouration (white, yellow, or brownish-yellow), crumbling or brittle texture, and lifting or separation of the nail from the nail bed. In some cases, the infection can spread to the skin around the nail, causing further discomfort and disfigurement.
Treatment for nail fungus aims to clear the infection and restore the appearance of the nails. It is important to start treatment as soon as possible, as nail fungus can be challenging to eradicate. Over-the-counter antifungal nail creams are widely available and can be effective in mild cases. For more severe infections, prescription-strength topical treatments or oral antifungal medications may be necessary. Oral prescriptions such as terbinafine (Lamisil) or itraconazole (Sporanox) are effective but have been associated with potential liver toxicity and other side effects. Ciclopirox (Penlac Nail Lacquer) is a topical alternative that is applied directly to the nail.
In addition to medical treatments, some home remedies may help manage nail fungus. These include soaking the nails in a mixture of baking soda and warm water or applying tea tree oil diluted with a carrier oil such as olive or coconut oil. However, it is important to note that home remedies may not be sufficient for severe infections, and seeking medical advice is recommended if the condition does not improve.
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Smoking
Yellow nails are often indicative of smoking or a history of smoking. The staining is caused by the tar in tobacco smoke, rather than nicotine, as is commonly assumed. The yellow pigmentation of the nail plate is referred to as the "nicotine sign". In addition to discolouration, the nails may also take on a rounded or clubbed appearance, which can be a result of chronic lung disease or COPD in long-term smokers. This is known as the Harlequin nail, which specifically refers to the appearance of a nail after someone quits smoking suddenly, as half the nail is stained and the other half is not.
The yellowing of nails due to smoking can be treated with household remedies such as lemon, baking soda, and nail polish remover. However, frequent use of nail polish remover is not recommended as it can be strong and harmful to the skin and nails. A permanent solution to discolouration is to quit smoking or switch to tobacco products that do not contain tar and do not need to be burned, such as e-cigarettes or snus.
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Underlying health conditions
Yellow nails can be caused by external factors such as nail polish, acrylic nails, smoking, or fungal infections. However, in some cases, yellow nails can indicate underlying health conditions that require medical attention.
One such condition is yellow nail syndrome, a rare disorder characterized by yellow, thickened, and curved nails that may fall off. People with this syndrome may also experience respiratory symptoms, such as a chronic cough, and swelling in the lower legs or ankles due to fluid buildup. While the exact cause of yellow nail syndrome is unknown, it is believed to be associated with improper circulation, lymphatic drainage issues, or fluid accumulation around the lungs. It is typically seen in adults over 50, but it can also occur in children.
In addition to yellow nail syndrome, yellow nails can be a symptom of various other underlying health conditions. For example, yellow nails have been associated with thyroid disorders, rheumatoid arthritis, and lung diseases such as chronic obstructive pulmonary disease (COPD) and chronic bronchitis. Yellow nails can also indicate more serious conditions, including internal malignancies, lymphatic obstructions, and autoimmune diseases such as psoriasis and diabetes.
If you notice that your nails have turned yellow and stay that way for an extended period, it is important to consult a healthcare provider, especially if accompanied by other symptoms. A dermatologist or a doctor specializing in skin and nails can examine your nails, consider your medical history, and determine the appropriate course of action. While home remedies and over-the-counter treatments are available for some causes of yellow nails, persistent or concerning symptoms should be evaluated by a medical professional.
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Nail polish
Yellow nails can be caused by a variety of factors, including nail polish. While yellow nails can be a harmless cosmetic issue, they can also indicate more serious health conditions. Thus, it is important to identify the underlying cause of yellow nails.
Prolonged use of nail polish can also contribute to yellow nails. Leaving nail polish on for more than a week can cause the nails to dry out and become brittle, creating an ideal environment for fungus, bacteria, and other harmful microbes to thrive underneath the nail. Therefore, it is advisable to give your nails a break from polish for at least a week to maintain nail health.
To address nail discolouration caused by nail polish, there are several home remedies that can be considered. These include:
- Using nail stain remover to lighten the stain
- Soaking nails in a diluted vinegar solution (1 part vinegar to 4 parts water)
- Applying whitening toothpaste
- Soaking nails in a mixture of hydrogen peroxide and baking soda
- Using tea tree oil or oregano oil mixed with a carrier oil, such as coconut or jojoba oil, and applying it to the affected nails
While nail discolouration caused by nail polish is typically harmless, it is important to monitor for any persistent or worsening yellowing, as this could indicate a more serious underlying health condition. If yellow nails persist or are accompanied by other symptoms, it is recommended to consult a healthcare professional for further evaluation and treatment.
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Frequently asked questions
Yellow nails can be caused by external factors such as nail polish, acrylic nails, smoking, or fungal infections. They can also be a sign of an underlying health condition, such as a thyroid disorder, rheumatoid arthritis, diabetes, or psoriasis.
Treatment for yellow nails depends on the cause. If your nails are yellow due to staining from nail polish, dyes, or self-tanner, they should grow out to a healthy, clear colour. You can also try at-home remedies such as hydrogen peroxide, baking soda soaks, or tea tree oil. If your nails are yellow due to a fungal infection, you can try over-the-counter antifungal treatments or prescription oral medications.
If your nails remain yellow for more than a few days or weeks, or if you notice other symptoms such as nail changes, respiratory or circulatory issues, or swelling in the legs, you should see a doctor. A doctor will be able to examine your nails, take a detailed medical history, and determine the cause of your yellow nails.
