Noah Sinclair
There are several reasons why two of your fingernails may smell bad. One common reason is a fungal infection, which can cause a persistent foul odour and may also be accompanied by other symptoms such as redness, swelling, and pus drainage. In addition, the edges of your nails can trap dirt and residual smells, especially if they are long and have been in contact with pungent substances such as garlic or dirt. Trimming your nails may help to dissipate the smell, but if it persists, it is recommended to consult a doctor to rule out any underlying medical conditions.
| Characteristics | Values |
|---|---|
| Reason for bad smell | Pungent food (e.g. garlic, onion), dirt, or nail fungus |
| Nail fungus characteristics | Sweet, cheesy, or foul smell; nail discolouration; nail lifting from nail bed; white spots under nails |
| Nail fungus treatment | Over-the-counter antifungal treatments; prescription topical or oral antifungal medication |
| Prevention | Keep fingernails clean and trimmed; wash hands after handling odorous substances |
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What You'll Learn
Fingernails can smell bad due to nail fungus
Fingernails coming into contact with various substances throughout the day can cause an unpleasant smell. However, if the odour persists even after thoroughly washing your hands and nails, it could be due to a nail fungus.
Onychomycosis, or nail fungus, can cause toenails or fingernails to emit a cheesy or foot-like odour that does not go away with handwashing. It typically causes other nail changes as well, such as discolouration, lifting of the nail from the nail bed, and white discolouration or grooves in the nail.
Fungal nail infections can be caused by various organisms, including dermatophytes and non-dermatophytes. These infections are more common in individuals with suppressed or lowered immunity, poor circulation, or diabetes. If left untreated, fungal infections can spread to other parts of the body, such as the hands, groin, or torso.
To diagnose a nail fungus, a lab test (mycology test) is recommended to confirm the presence of a fungal infection. These tests can be requested through your doctor, and the initial results are usually available within two weeks.
If you suspect a nail fungus, there are over-the-counter nail antifungal treatments available, such as Opti-Nail 2-in-1 Fungal Nail Repair or Foot Cure Nail Fungus Solution. However, it may take months to see results, and consistent application is key. If an over-the-counter product is ineffective, your doctor may prescribe a topical or oral antifungal medication.
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It could be something you ate or touched, like dirt or garlic
It's possible that the smell is coming from something you've eaten or touched. For example, if you've been handling garlic or onions, the odour can sometimes linger on your skin and nails even after washing. This is because the sulphur compounds in these foods can be absorbed into the skin and nails. Similarly, certain types of food with strong odours, such as fish, cheese, or certain spices, can also cause a temporary odour to emanate from your fingertips if handled extensively.
In some cases, the smell could be a result of a build-up of dirt, grease, or bacteria under your fingernails. This is especially true if you've been engaging in activities that involve getting your hands dirty, such as gardening or mechanical work. Over time, dirt and grime can accumulate under your nails, leading to an unpleasant odour. Bacteria that naturally occur on the skin can also contribute to this issue.
If you've been wearing gloves, particularly without proper ventilation, it's possible for sweat and moisture to get trapped, creating an ideal environment for bacterial growth. This could lead to a persistent odour that affects your nails. In addition, certain types of gloves, especially those used for more intensive labour or chemical handling, can themselves give off a strong odour that may transfer to your nails.
To remedy this issue, ensure that you're practising proper hand hygiene, including regularly washing your hands with soap and warm water, and thoroughly cleaning under your nails. Consider using a nail brush to help dislodge any built-up dirt or debris. If the issue persists or becomes a cause for concern, it may be advisable to consult a healthcare professional or dermatologist for further advice and potential treatment options.
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Poor circulation and diabetes can cause nail infections
There are many reasons why your fingernails may smell bad. It could be due to something you touched or ate, or it could be a result of not washing your hands properly. However, if the odour persists even after thoroughly washing your hands, it could be a sign of an underlying issue such as nail fungus or another medical condition.
Poor circulation and diabetes can increase the risk of nail infections. Diabetes is a chronic condition that affects various aspects of an individual's health, including their feet. Diabetic individuals often experience compromised blood circulation, particularly in the feet, due to peripheral artery disease (PAD). This reduced blood flow can impair the body's ability to fight off infections and slow down the healing process, making it difficult for wounds or infections to heal.
Additionally, diabetes can weaken the immune system, making it harder for the body to combat infections, including fungal nail infections. High blood sugar levels create an ideal environment for fungi to thrive as sugar serves as an energy source for these organisms. Nerve damage caused by diabetes can also reduce sensation in the feet, making it challenging for individuals to detect the early signs of a fungal infection, allowing it to progress unchecked.
The combination of poor circulation and diabetes-related complications can lead to secondary bacterial skin infections, such as cellulitis. Fungal infections can spread to other parts of the body if left untreated, and in severe cases, may require amputation to prevent the spread of infection. Therefore, it is crucial for individuals with diabetes to pay close attention to their feet and nails, practising good hygiene and regularly examining their feet for any changes.
If you suspect a nail infection, it is important to consult a healthcare professional for a proper diagnosis and tailored treatment plan. Treatment options for fungal nail infections in individuals with diabetes include topical and oral antifungal medications, as well as laser therapy. Early detection and prompt treatment are vital to prevent complications and maintain optimal foot health.
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The smell may be due to an injury to your nail bed
Fingernails can sometimes emit a foul odour due to an injury to the nail bed. A nail bed injury can occur when the nail is caught between two objects, crushed, or cut by a sharp object. This can cause a subungual hematoma, which is when blood gets trapped under the nail bed, leading to a build-up of pressure and pain. In some cases, the nail may lift away from the nail bed, resulting in a nail bed avulsion.
If you suspect that your nail odour is due to a nail bed injury, it is important to assess the severity of the injury and seek appropriate treatment. Minor nail bed injuries, such as small subungual hematomas, often heal on their own without requiring medical intervention. However, more severe injuries may need professional attention to ensure proper healing and prevent long-term deformities.
One common complication of nail bed injuries is a nail infection, which can lead to a persistent foul odour. Fungal nail infections, also known as onychomycosis, can cause the nails to emit a cheesy or foot-like odour. This type of infection usually affects the toenails, but it can also occur in the fingernails. It is characterised by nail discolouration, lifting of the nail, and other nail changes.
To prevent and treat a potential fungal nail infection, it is important to maintain proper nail hygiene. This includes washing your hands and nails thoroughly, especially after any injury or contact with potential sources of infection. Over-the-counter antifungal treatments are available, but persistent or severe infections may require prescription medication or medical procedures.
It is always advisable to consult a doctor if you are concerned about the smell or appearance of your nails, as it could indicate an underlying medical condition that needs attention.
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It could be nail psoriasis, which often occurs in people with general psoriasis
If two of your fingernails smell bad, it could be due to nail fungus, which is a common cause of foul-smelling nails. However, it could also be nail psoriasis, which often occurs in people with general psoriasis. Nail psoriasis is an autoimmune condition that affects the nails on your fingers and toes, causing various changes in the appearance and texture of the nails.
Nail psoriasis is characterised by several symptoms, including discoloration, pitting, and changes in nail thickness and shape. Specifically, your nails may turn white, yellow, or brown, and may have small red or white spots underneath. They may also develop ridges, grooves, or tiny dents (pits) on the surface. In some cases, there may be a buildup of chalky white material under the nail, causing it to lift away from the skin, which can be uncomfortable or even painful.
Nail psoriasis is typically diagnosed through a physical examination by a healthcare provider, who will look for common signs and symptoms of the condition. They may also inquire about your symptoms and family history. Once nail psoriasis is confirmed, the provider may use the nail psoriasis severity index (NAPSI) to grade its severity. This involves dividing the nail into four quadrants and assigning a score based on the presence of any nail psoriasis symptoms in each quadrant. A low score indicates mild nail psoriasis, while a high score signifies more severe disease.
While there is no cure for nail psoriasis, various treatments can help alleviate symptoms and prevent worsening. Treatment options include topical medications such as corticosteroids, vitamin D derivatives (e.g., calcipotriol), and retinoid creams. In cases of thickening nails, gels or ointments containing urea can help thin them. Additionally, your doctor may recommend nail lacquers for daily application to hydrate and strengthen the nails. For more severe cases, corticosteroid injections may be administered under the nail surface every two to nine months to reduce pain and improve symptoms.
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Frequently asked questions
There are several reasons why your fingernails might smell bad. It could be due to a fungal infection, which can cause a persistent cheesy or foul odour. Other signs of a fungal infection include nail discolouration, thickness, and debris under the nail. If you suspect a fungal infection, consult a doctor or podiatrist for diagnosis and treatment.
Treatment for fungal nail infections can be a long and expensive process. There are various options available, including oral antifungal medications, topical ointments, and alternative therapies. While over-the-counter creams and ointments are available, they may not be very effective. It is important to consult a doctor before trying any new treatment.
Yes, the smell could be due to something you handled, such as pungent food like onions or garlic, dirt from gardening, or inadequate handwashing after using the bathroom. In these cases, thorough handwashing, including cleaning under the nails, should eliminate the odour.
It is not uncommon for fingernails to have a strange smell when cut, especially if they have been left untrimmed for a while. This is due to residual smells and materials trapped under the nails. However, if the odour persists even after washing your hands and nails, it could indicate a fungal infection or another underlying medical condition.
