
Green nail syndrome, also known as chloronychia or Goldman-Fox syndrome, is a bacterial infection that causes nails to turn green. It is caused by Pseudomonas aeruginosa, a bacteria found in water sources, humans, animals, and soil. The bacteria thrive in moist environments, and prolonged exposure to water can increase the risk of developing green nail syndrome. Treatment for green nail syndrome typically involves keeping nails dry and avoiding moisture, as well as oral or topical antibiotics to kill the bacteria. Soaking nails in vinegar, diluted bleach, or rubbing alcohol can also help to treat the infection. While green nail syndrome is not common in healthy individuals, certain lifestyle and workplace factors can increase the risk of developing the infection.
| Characteristics | Values |
|---|---|
| Cause | Fungus accumulation under an acrylic nail |
| Colour | Dark green or black |
| Culprit | Pseudomonas aeruginosa |
| Treatment | Oral antibiotics, topical creams, home remedies |
| Prevention | Keep nails dry, avoid water exposure, wear gloves, trim nails, disinfect with antifungal |
| Duration | A few weeks to months |
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What You'll Learn

Green nail syndrome
Individuals with prolonged nail exposure to water sources are more prone to developing GNS. Occupations with significant water exposure, such as bartenders, dishwashers, and medical personnel, have a higher risk of contracting GNS. Artificial nails and nail trauma (biting, chewing, tearing) may also increase the risk of developing GNS. GNS has also been linked to manicures, heat, dermatitis, ulcerations, occlusions, and excess sweating. Soccer players, military personnel, and immunosuppressed individuals are at a higher risk due to prolonged periods of exercise in tight-fitting shoes or a weakened epidermis barrier.
The diagnosis of GNS is typically made through a physical examination of the nail, although nail cultures and scrapings may sometimes be necessary to rule out other infections. Treatment for GNS involves keeping the nails dry and avoiding moisture. Soaking the nails in diluted vinegar (acetic acid) or sodium hypochlorite (bleach) solutions can help suppress bacterial growth. Topical or systemic antibiotics may be used, although oral antibiotics are rarely recommended. Trimming the nails and soaking them in alcohol can help dry out the area and prevent bacterial colonisation. In some refractory cases, surgical removal of the infected nail may be required.
To prevent GNS, individuals should avoid prolonged exposure of the nails to water and wear waterproof gloves or rubber boots when necessary. Avoiding nail trauma and maintaining proper nail care during manicures are also important in preventing GNS. Keeping the nails clean and dry can help stop fungal growth and prevent future infections.
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Preventing green nails
Green nail syndrome (GNS) is a bacterial infection that causes the nail to turn green due to bacteria secreting pigments. It is characterised by discolouration of the infected nail, inflammation of the skin around the nail, and an odour resembling fruit. The colour may vary from light or bluish-green to dark green or black.
GNS is caused by exposure to bacteria, most commonly Pseudomonas aeruginosa, which is frequently found in nature, including water sources, humans, animals, and soil. These bacteria thrive in moist conditions and can grow under false nails, just like moss grows in a fish tank if not regularly cleaned.
To prevent GNS, it is important to minimise exposure to water and keep nails dry. Here are some tips to prevent green nails:
- Wear waterproof gloves or rubber boots when working with water or in humid environments to avoid prolonged exposure of the nails to water. This is especially important for those working as bartenders, dishwashers, waiters, or in other occupations with significant water exposure.
- Keep your hands and feet clean and dry as much as possible. Wash your hands regularly with soap and avoid excessive exposure to harsh chemicals such as bleach or acetone-based nail polishes.
- Avoid soaking your nails in water for long periods, especially after getting a manicure or when swimming in contaminated pools or hot tubs.
- Trim your nails regularly to prevent bacteria from accumulating under the nail.
- Disinfect your nails and the filed area with an antifungal solution such as tea tree oil or diluted vinegar.
- Allow your nails to breathe and heal between applications of nail polish or artificial nails.
- Choose quality products from reputable suppliers and follow the instructions for application and removal.
- Monitor your nails regularly and seek medical attention if you notice any suspicious signs, such as redness, swelling, or pain near the fingernail area.
By following these preventative measures, you can reduce the risk of developing green nail syndrome and maintain healthy and natural-looking nails.
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Treating green nails at home
Green nail syndrome is a bacterial infection caused by the bacteria Pseudomonas aeruginosa. It is commonly found around swimming pools, hot tubs, bathtubs, and showers. The greenish discolouration is caused by the accumulation of moisture and the growth of bacteria under the nail, which leads to fungal infections.
Keep your nails clean and dry
As bacteria thrive in damp places with no fresh air circulation, it is important to keep your nails clean and dry. Wash your hands with water and an emollient-free cleanser. Ensure that there isn't any moisture left on your nails after washing.
Trim and disinfect your nails
Trim your nails and keep them short. Disinfect the filed area with an antifungal solution such as tea tree oil, which has antibacterial and antifungal effects. You can also disinfect your nails with rubbing alcohol or soak them in apple cider vinegar, white vinegar, or a diluted chlorine bleach solution.
Soak your nails in vinegar
Soaking your nails in a vinegar solution is one of the most effective home remedies for treating green nail syndrome. Mix vinegar and water in a ratio of 1:4 to 1:6, depending on the concentration of the vinegar. Soak your nails for at least 10 minutes, then dry them thoroughly.
Remove artificial nails
If you have artificial nails, remove them as soon as you notice a fungal infection. Clean your fingers using soap and water. Do not put on any new nails until the infection clears up.
Seek medical advice
If your symptoms do not improve after a few days of home remedies, consult a healthcare provider. They may prescribe antifungal oral medicines or creams, or recommend other treatments such as antibiotics.
It is important to note that while home remedies can be effective, severe cases of green nail syndrome may require medical care. Additionally, always consult a doctor before using any medications or treatments.
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Green nails and false nails
Green nails, also known as "greenies", are a common bacterial infection caused by Pseudomonas aeruginosa, which is found in fresh and salt water. It is most commonly found in damp places with poor air circulation, such as around swimming pools, hot tubs, bathtubs, and showers. Green nail syndrome can occur when there is prolonged nail exposure to water sources, or when there is nail trauma (such as biting or chewing) or deformities that create small gaps between the natural nail plate and artificial enhancements. This allows moisture to build up, providing an ideal environment for the bacteria to grow.
Those with artificial nails may be at a higher risk of developing green nail syndrome, although this link has not been definitively proven. If you choose to wear false nails, it is important to take certain precautions to reduce the likelihood of developing green nails. Before applying false nails, ensure that your natural nails are clean and dry. Look for any signs of infection or cuts on your hands or feet, as these can provide an entry point for bacteria. When wearing false nails, avoid soaking them in water for extended periods, as this increases the chances of fungal growth underneath. If your hands will be submerged in water, it is recommended to wear gloves and dry them thoroughly afterward. Keeping your nails trimmed and disinfecting the filed area with an antifungal solution can also help prevent the accumulation of bacteria.
If you develop green nails after wearing false nails, there are several steps you can take to address the issue:
- Remove any remaining false nail material using nail clippers or a file, being careful not to damage your natural nail bed.
- Wash your hands with water and an emollient-free cleanser.
- Gently buff away the green discolouration, taking care not to scrub too aggressively.
- Disinfect your nails with rubbing alcohol, apple cider vinegar, white vinegar, or a diluted chlorine bleach solution. Alternatively, you can soak your nails in tea tree oil or hydrogen peroxide.
- Soak your hands in warm water for about 10 minutes and add a few drops of tea tree oil.
In most cases, the greenness will disappear within a couple of weeks if you keep your hands clean and allow your nails to air out. It is important to regularly use nail treatments to promote a speedy recovery. However, stains from greenies can sometimes take months to grow out, and if the discolouration seems to be spreading, it is recommended to consult a doctor. While pseudomonas bacteria do not require medical treatment and will disperse on their own, causing no health issues, they can be unsightly and may require some time to fully disappear.
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Pseudomonas nail infections
Green Nail Syndrome is caused by exposure to a bacterial organism, most commonly Pseudomonas aeruginosa, which is frequently found in nature, including in water sources, humans, animals, and soil. These bacteria thrive in moist conditions but do not usually survive on dry, healthy skin. Those with prolonged nail exposure to water sources are more prone to developing Green Nail Syndrome. Occupations with significant water exposure, such as bartenders, dishwashers, and waiters, have a higher risk of contracting the infection. Artificial nails and nail trauma (such as biting, chewing, or tearing) may also increase the risk.
To treat Pseudomonas nail infections, it is essential to keep the nails dry and avoid excessive immersion in water. Trimming the nails and soaking them in diluted vinegar, diluted chlorine bleach, or rubbing alcohol can help dry out the area and prevent bacterial growth. Topical antibiotics may be prescribed for moderate cases, and oral antibiotics can be used if other therapies fail.
Preventative measures are crucial for those at high risk of contracting Green Nail Syndrome. Wearing waterproof gloves or rubber boots can help prevent prolonged exposure to water. Avoiding nail trauma and keeping nails clean and dry can also reduce the risk of infection.
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Frequently asked questions
Green nail syndrome is caused by a bacterial infection, most commonly by the bacteria Pseudomonas aeruginosa. This bacteria is frequently found in nature, including in water sources, humans, animals, and soil.
To prevent green nails, avoid prolonged exposure to water and keep your nails dry. If you work in a profession that requires you to immerse your hands in water, wear waterproof gloves. Additionally, avoid nail trauma and maintain good nail hygiene, especially when getting manicures or wearing artificial nails.
There are several home remedies you can try to treat green nails, including soaking your nails in vinegar, diluted chlorine bleach, or tea tree oil. You can also apply over-the-counter antifungal creams or medicated nail polishes.
The time it takes for green nails to go away depends on the severity of the infection and the treatment used. Most patients respond quickly and fully to treatment, but it may take a few weeks to months for the nails to return to normal.
If your green nails do not improve with home treatments or if you experience other symptoms such as pain or inflammation, you should see a doctor or dermatologist for further evaluation and treatment options.











































