
Have you ever noticed a strange smell coming from your fingernails? Well, you're not alone. It's actually quite common for fingernails to smell, especially after cutting them. This can be caused by a variety of factors, such as the accumulation of residual smells and dirt under long nails, or even a fungal infection. In most cases, the smell is harmless and can be easily managed with proper hand and nail hygiene. However, persistent or strong odours accompanied by other symptoms may indicate a more serious nail fungus or underlying medical condition that requires treatment.
| Characteristics | Values |
|---|---|
| Frequency | Nail fungal infections are the most common diseases of the nails, making up about 50% of nail abnormalities. |
| Odor | The smell is described as pungent, sweet, cheesy, or foul. |
| Cause | Microscopic fungi, specifically dermatophytes like Candida, are the most common cause of nail fungal infections. Other causes include yeasts and molds, such as Trichophyton rubrum, Trichophyton interdigitale, and Epidermophyton floccosum. |
| Risk Factors | Nail fungal infections are more common in men, the elderly, and individuals with lowered immunity, poor circulation, or diabetes. |
| Symptoms | Discoloration (white, yellow, brown, or black), thickening of the nail, crumbling edges, redness, swelling, and pus drainage. |
| Prevention | Keeping nails short and clean, and maintaining hand and foot hygiene can help prevent nail fungal infections. |
| Treatment | Over-the-counter antifungal treatments are available, but persistent infections may require prescription medications or alternative remedies like tea tree oil, vinegar, or oregano oil. |
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What You'll Learn
- Nails can smell due to fungal infections, which can cause a cheesy or foot-like odour
- Trimming nails can cause a pungent smell due to the release of stinky sulphur compounds
- Residual smells from food like garlic or onions can get trapped under nails
- Gardening without gloves can cause a nail smell due to trapped dirt
- Poor hand hygiene can lead to nail odour and potential bacterial infections

Nails can smell due to fungal infections, which can cause a cheesy or foot-like odour
It is not uncommon for fingernails to smell when cut, especially if they are long. This is because the edges of your nails can trap dirt and other residual smells. However, if the odour persists, it could be a sign of a nail fungus. Nails that are infected with fungus may emit a foul, cheesy or foot-like odour that does not ease up even after washing your hands.
Nail fungal infections, or onychomycosis, are the most common diseases of the nails, affecting about 10% of the adult population. They can affect both fingernails and toenails but are more common in toenails. The infection usually appears as discolouration and thickening of the nail, with crumbling edges. The nail may vary in colour from white to yellow, brown or black, and can have a crumbly, chalky texture.
Fungal nail infections are caused by microscopic fungi, which do not require sunlight to survive. The most common type of fungus responsible for nail infections is a group of fungi called dermatophytes, such as Candida. However, some yeasts and moulds can also cause these infections, including Trichophyton rubrum, Trichophyton interdigitale, and Epidermophyton floccosum, among others.
If you suspect you have a fungal nail infection, it is recommended to consult a doctor or a podiatrist for an accurate diagnosis. They may suggest a lab test, such as a mycology test, to confirm the presence of a fungal infection. Treating nail fungus can be a long and expensive process, and it may require persistence, patience, and perseverance.
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Trimming nails can cause a pungent smell due to the release of stinky sulphur compounds
Trimming your nails can release a pungent odour due to the presence of sulphur compounds within the keratin proteins in your nails. This smell is typically short-lived and nothing to be concerned about. However, persistent nail odour, especially with other symptoms, may indicate a fungal infection or an underlying medical condition.
Fungal nail infections, also known as onychomycosis, are a common cause of nail discolouration, thickening, and crumbling edges. These infections can result in a foul odour that does not dissipate easily, even after washing your hands. The fungus can infect the nail from the underside or the surface, leading to various colour changes and textures.
Miami-based board-certified dermatologist Anna Chacon explains that long fingernails can trap residual smells and materials, leading to an odour. This is why trimming your nails may release a pungent smell as you expose the trapped substances.
To prevent and address nail odour, it is essential to maintain proper hand and foot hygiene. Washing your hands and nails thoroughly, including the undersides of your nails, can help eliminate unpleasant smells. Additionally, keeping your nails short and clean can reduce the risk of nail fungal infections, which are a common cause of nail odour.
If the odour persists or is accompanied by other symptoms such as redness, swelling, or pus drainage, it is recommended to consult a doctor. They can advise on appropriate treatments, such as over-the-counter nail antifungal products or prescription medications, depending on the severity of the condition.
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Residual smells from food like garlic or onions can get trapped under nails
It is quite common for fingernails to smell when you cut them. This is because the edges of your nails trap dirt and other substances, especially if they are long and have not been clipped in a while. Residual smells from pungent foods like garlic or onions can get trapped under your nails, causing an odour. This is also true of other strong-smelling substances, such as dirt from gardening, or even waste matter if you've been changing a diaper.
To prevent this, it is important to wash your hands and nails thoroughly after handling such substances. To clean under the nails, soap up your hands and gently scratch your nails against the opposite palm. You can also use a nail brush for deep cleaning. If the smell is coming from your skin, try rubbing your hands with a stainless steel object, such as a spoon or a specialised bar like the Amco Rub-A-Way Bar.
If the smell persists even after washing your hands and nails, spreads to other areas of the body, or is accompanied by other symptoms like redness, swelling, or pus drainage, it is important to consult a doctor. A persistent foul smell could be a sign of a nail fungus infection or another underlying medical condition that requires treatment.
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Gardening without gloves can cause a nail smell due to trapped dirt
Gardening is a fun and rewarding hobby, but it can also be messy, especially if you don't wear gloves. While it's tempting to get your hands dirty, gardening without gloves can have some unpleasant consequences, like dirt trapped under your fingernails. This can not only look unsightly but also lead to an unpleasant nail smell.
Dirt and grime can become lodged under your nails as you dig and plant, and this can be challenging to remove, even with thorough handwashing. Over time, this trapped dirt can start to smell, especially if it's mixed with sweat or other substances. The edges of your nails are particularly susceptible to trapping dirt and odours, especially if your nails are on the longer side.
The smell is usually a result of the dirt and bacteria that have accumulated under your nails during your gardening session. This can be more noticeable if you've been handling strong-smelling plants or soil, or if your hands have come into contact with other pungent substances, such as onions or garlic.
To prevent this issue, it's advisable to wear gloves while gardening. However, if you prefer to garden with bare hands, there are some steps you can take to minimise the dirt and odour. Keep your nails short and neatly trimmed, as shorter nails are easier to care for and less likely to trap dirt. Additionally, consider coating your nails with clear nail polish or nail hardener, which can create a barrier, making it harder for dirt to become trapped under your nails.
If you find yourself with smelly nails after a gardening session, there are some remedies you can try. Be sure to wash your hands and nails thoroughly, scrubbing under your nails with soap and using a soft nail brush if needed. You can also try rubbing your hands with stainless steel, such as a spoon or a specialised odour-removing bar, to help neutralise any lingering odours.
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Poor hand hygiene can lead to nail odour and potential bacterial infections
Maintaining good hand hygiene is essential to prevent nail odour and potential bacterial infections. Nails, particularly if they are long, can trap dirt and residual smells, which can lead to an unpleasant fingernail odour. This can usually be remedied by simply washing your hands and nails thoroughly, including the undersides of your nails. To effectively clean under your nails, soap up your hands and gently scratch your nails against the opposite palm. Alternatively, you can use a nail brush for a deeper clean.
However, if the odour persists even after proper handwashing, it could indicate a nail fungal infection. Nail fungus can cause a persistent cheesy or foul odour that does not go away with washing. It is often accompanied by other nail changes, such as discolouration, thickening, and crumbling edges. Fungal infections can affect both fingernails and toenails but are more common in toenails.
Fungal infections are caused by microscopic fungi, primarily dermatophytes, but also by some yeasts and moulds. These organisms thrive in warm, moist environments and can infect the nail bed, leading to potential bacterial infections if left untreated. Older adults, individuals with lowered immunity, poor circulation, and diabetes are at a higher risk of developing nail fungus and subsequent bacterial infections.
To prevent and treat nail fungal infections, maintaining good hand and foot hygiene is crucial. Keeping your nails short, clean, and dry can help deter fungal growth. If you suspect a fungal infection, seek medical advice, as proper diagnosis and treatment are essential to prevent the infection from spreading to other parts of the body.
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Frequently asked questions
There are many reasons why your fingernails may smell. It could be something you handled, such as pungent food like garlic or onions, dirt from gardening, or soap residue. It could also be caused by bacteria and fungi that thrive in dark and sweaty environments.
To get rid of the smell, thoroughly wash your hands and fingernails, including the undersides. You can also use a nail brush for deep cleaning under the nails. If the odour persists, you can try using a stainless steel object, such as a spoon or a specialised odour-removing bar, to rub your hands with.
Yes, nail fungus can cause your fingernails to have a cheesy or foul odour. It is usually accompanied by other nail changes, such as discolouration, thickening, and crumbling edges.
To prevent nail fungus, it is recommended to keep your nails short and clean. Nail fungus thrives in long and dirty nails, so trimming your nails regularly and maintaining good hand hygiene can help reduce the risk of infection.
If the smell persists even after washing your hands and nails thoroughly, or if it is accompanied by other symptoms such as redness, swelling, or pus drainage, it is recommended to consult a doctor. A persistent foul smell could indicate a nail fungus infection or another underlying medical condition that requires treatment.











































