
Thick fingernails can be a result of several factors, including injury, infection, skin diseases such as eczema and psoriasis, and chronic conditions. While thick nails are often associated with ageing, they can also indicate underlying health issues such as lung disease, rheumatoid arthritis, or a fungal infection. In some cases, thick nails may be a result of nail disorders like onychauxis or mycotic nails, which can cause nail thickening, discoloration, and fragility. It is important to seek medical advice for persistent nail problems, as they can be a sign of more serious conditions.
| Characteristics | Values |
|---|---|
| Thick finger nails | Could be a sign of Onychauxis, a nail disorder that causes finger or toenails to grow abnormally thick |
| Could be a sign of Mycotic nails, a fungal infection that causes nails to thicken and become fragile | |
| Could be a sign of Pityriasis rubra pilaris, a rare skin condition that causes nail thickening, discoloration, and shedding | |
| Could be a sign of Onychogryphosis, a condition that causes nails to thicken and overgrow | |
| Could be a result of continuous mild trauma such as finger-tapping or using nails as tools | |
| Could be a sign of lung disease, rheumatoid arthritis, or a serious nail infection | |
| Could be a result of hereditary causes |
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What You'll Learn
- Thick nails can be a sign of a fungal infection, such as onychomycosis or mycotic nails
- Thick nails can be caused by trauma to the nail bed, such as dropping a heavy object on the toe
- Thick nails can be a sign of underlying health conditions, such as lung disease or rheumatoid arthritis
- Thick nails can be a result of nail psoriasis, which can lead to other nail problems
- Thick nails can be treated by a podiatrist or dermatologist through various medical and home remedy options

Thick nails can be a sign of a fungal infection, such as onychomycosis or mycotic nails
Thick nails can be a sign of a fungal infection, known as onychomycosis or mycotic nails. Onychomycosis is a common condition, affecting up to
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Thick nails can be caused by trauma to the nail bed, such as dropping a heavy object on the toe
Thick nails can be unsightly and even incapacitating. There are many causes of nail thickening, including nail trauma, which can result in complex lacerations and partial loss of the nail bed. In the case of acute trauma, such as dropping a heavy object on your toe, it is important to assess the damage and treat the injury correctly to prevent late deformities.
Nail injuries can range from a smashed or bruised nail to a more serious injury where the nail is torn away from the nail bed. In the case of a heavy object landing on your toe, it is likely that the nail and the nail bed will be damaged. If the nail has lifted off the nail bed, it may be most comfortable to replace the nail and hold it in place with a bandage. However, it is important to note that nails will not reattach to the nail bed once they have separated from it. A new nail will slowly regrow, pushing off the old nail.
If the trauma has injured the nail matrix, a ridge or split may develop. If the matrix heals normally, this deformity will disappear as the nail regrows. Regrowth after trauma may also cause transverse ridges. If the nail becomes so thick that it causes pain or discomfort, it may be necessary to see a doctor to have the nail removed. In some cases, the thickened nail may need to be removed so that a deep tear can be repaired with stitches.
To treat a nail injury at home, it is important to stop any bleeding quickly. If you cannot stop the bleeding, or if there is a large amount of blood under the nail, you should seek medical attention. For small hematomas, it is possible to drain the blood by creating a small hole through the nail with a hot needle or paper clip. However, this procedure may make some people uncomfortable, and a physician can provide the same treatment in their office.
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Thick nails can be a sign of underlying health conditions, such as lung disease or rheumatoid arthritis
Lung Disease
Nail clubbing, where nails appear wider, spongy, or swollen like an upside-down spoon, is often a symptom of lung cancer. It can also indicate other pulmonary diseases, including bronchiectasis, lung abscess, empyema, pulmonary fibrosis, and cystic fibrosis. Clubbing may also occur in patients with congenital heart disease, endocarditis, or inflammatory bowel disease. Therefore, it is essential to consult a healthcare provider if you notice any nail clubbing to determine if there is an underlying health issue that requires treatment.
Rheumatoid Arthritis
Thickened nails are also associated with rheumatoid arthritis (RA), an inflammatory autoimmune condition that can affect any part of the body. In addition to nail thickening, RA can cause nails to turn yellow, with the disappearance of the white half-moon shape at the bottom of the nail and curving sides. Other nail changes related to RA include pitting, brittleness, and discoloration, which can provide valuable clues about the disease's impact on the body. While nail changes may not be as debilitating as other RA symptoms, they can still impact daily functions and cause psychological distress.
Other Conditions
Thick nails can also be indicative of other health issues. For example, "spoon-shaped" nails, known as koilonychia, may suggest hemochromatosis or anemia. In the absence of trauma or psoriasis, onycholysis can prompt an investigation for hyperthyroidism. Beau's lines on the nails may indicate previous severe illness, trauma, or exposure to cold temperatures in patients with Raynaud's disease. Additionally, patients with telangiectasia, koilonychia, or pitting of the nails may exhibit connective tissue disorders.
Treatment Considerations
When thick nails are a symptom of an underlying health condition, the treatment plan typically focuses on addressing the root cause. For example, treating lung cancer or managing rheumatoid arthritis may help improve nail health. However, it is important to note that nail changes related to certain conditions, such as RA, can be challenging to treat directly due to their systemic nature. While there are no specific topical treatments for RA-related nail issues, maintaining nail health through steps like avoiding harsh chemicals, keeping nails clean, and trimming them regularly can help.
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Thick nails can be a result of nail psoriasis, which can lead to other nail problems
Thick nails can be a result of several factors, one of which is nail psoriasis, a subtype of psoriasis, an autoimmune condition that affects the fingernails and toenails. It causes nail thickening, discoloration, and changes in nail structure. While it is not contagious, it can be painful and uncomfortable if left untreated, and it may lead to other nail problems.
Nail psoriasis is characterised by an overreaction of the immune system, leading to new skin cells growing too rapidly. Typically, new skin cells grow every 28 to 30 days, but in people with nail psoriasis, new cells form and reach the skin surface every three to four days, resulting in a skin rash. This rapid cell growth can cause thickening of the nails, along with other changes such as discoloration and pitting.
Discoloration can manifest as yellow, red, pink, or brown patches under the nails, known as salmon patches or oil drop spots. Pitting refers to tiny dents or pits in the nail surface, which can vary in size and depth. In addition, grooves may develop horizontally across the nails (Beau's lines), and the nails may become thin and brittle, leading to crumbling.
The thick layer of skin under the nail tip may also start to peel and separate from the nail bed, a process called onycholysis. This separation can create an entry point for nail fungus, leading to potential nail infections. Additionally, untreated nail psoriasis may worsen over time, causing discomfort and pain that can interfere with daily activities. Therefore, it is essential to seek treatment early and maintain nail hygiene to prevent further complications.
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Thick nails can be treated by a podiatrist or dermatologist through various medical and home remedy options
In some cases, thick nails may be a sign of an underlying condition, such as psoriasis, ichthyosis, or circulation problems. A dermatologist can examine the nails and provide a diagnosis and treatment for these conditions. For example, pitted nails with dents that look like they were made by an ice pick could indicate alopecia areata. Thick, yellow nails could be a sign of lung disease or rheumatoid arthritis, or a serious nail infection. A dark streak under the nail could indicate melanoma, the most serious type of skin cancer. Early detection and treatment by a dermatologist are crucial in such cases.
Additionally, thick nails can sometimes be treated through simple self-help techniques and minor lifestyle changes. For example, maintaining proper nail hygiene and avoiding habits that can damage the nails, such as nail-biting, can help improve nail health. Keeping the nails trimmed, filed, and moisturized can also help prevent them from becoming too thick or brittle.
In summary, thick nails can be treated by a podiatrist or dermatologist through medical interventions, or in some cases, through home remedy options and lifestyle changes. It is important to seek professional advice if you are concerned about the appearance or health of your nails, as they can provide guidance and treatment options tailored to your specific needs.
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Frequently asked questions
Thick fingernails are usually harmless and are a normal part of the ageing process. However, they can sometimes be a sign of an underlying condition, such as a fungal infection, or a disease like lung disease or rheumatoid arthritis. If you are concerned about thick fingernails, it is best to consult a doctor or dermatologist.
Thick fingernails can be caused by a number of factors, including mycotic nails, onychauxis, psoriasis, eczema, or circulation problems. In some cases, thick fingernails may also be hereditary.
Treatment for thick fingernails depends on the underlying cause. In some cases, keeping your nails trimmed and clean may be sufficient. In other cases, you may need to seek medical treatment from a doctor or dermatologist, who can help diagnose and treat the condition.
Yes, in some cases, thick fingernails can be prevented by maintaining proper nail care and hygiene. This includes trimming your nails regularly, keeping them clean, and avoiding habits that can cause trauma to the nails, such as finger-tapping or using your nails as tools.











































