Liam Carter
Green nails, also known as greenies, are usually the result of an infection known as green nail syndrome. This is caused by an organism called pseudomonas aeruginosa, a bacterial infection that thrives in moist conditions. This can occur from frequent exposure to water or chemicals, or from wearing nail polish or false nails continually. Green nail syndrome is characterised by discolouration of the nails, ranging from light green to dark green or black, and sometimes an odour resembling fruit.
| Characteristics | Values |
|---|---|
| Name of the condition | Green nail syndrome, chloronychia, Goldman-Fox syndrome, chromonychia |
| Cause | Exposure to the bacterial organism Pseudomonas aeruginosa, which thrives in moist conditions |
| Risk factors | Frequent immersion of hands in water, damaged nails, trauma to the nail or finger, hyper-hydration or destruction of the epidermis, wearing nail polish or false nails continually without a break, exposure to certain chemicals |
| Symptoms | Discoloration of the nails (ranging from light or bluish-green to yellow-green, dark green, or black), transverse green stripes, inflammation of the skin around the nail (paronychia), fruity odour |
| Prevention | Wear waterproof gloves or rubber boots, avoid nail trauma, keep nails dry |
| Treatment | Soak nails in vinegar or chlorine bleach solution diluted with water, trim nails regularly, soak nails in alcohol, topical or oral antibiotics, tobramycin eye drops |
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What You'll Learn
Green nail syndrome
The nail discolouration in green nail syndrome can range from light or bluish-green to dark green or black. In some cases, the nails may also exhibit transverse green stripes or a yellow-green hue. The discolouration is caused by pigments secreted by the bacteria, such as pyocyanin and pyoverdin. While the syndrome is rare in healthy individuals, it can occur in those who are immunocompromised or have damaged nails. Additionally, frequent immersion of the hands in water, exposure to certain chemicals, and wearing artificial nails or nail polish continuously can increase the risk of developing green nail syndrome.
The diagnosis of green nail syndrome can typically be made through a physical examination of the nail, although bacterial and fungal cultures may be performed to rule out other infections. Treatment options for green nail syndrome vary, and there are currently no standardised treatment guidelines. In mild cases, home remedies such as soaking the nails in diluted vinegar or chlorine bleach solutions may be effective. Moderate cases may require topical antibiotics, while severe or refractory cases may need oral antibiotics or surgical removal of the infected nail. Tobramycin eye drops have also been recommended as a safe and effective treatment option.
To prevent green nail syndrome, individuals should avoid prolonged exposure of the nails to water and chemicals, especially when coupled with inadequate protection, such as ill-fitting gloves. Keeping the nails dry and avoiding nail trauma are crucial in preventing the syndrome. Waterproof gloves and rubber boots can be worn during activities that involve frequent hand immersion in water.
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Pseudomonas aeruginosa
Green nails, also known as chloronychia or green nail syndrome, are characterised by a green discolouration of the nail plate, which can range from greenish-yellow to greenish-brown, and even darker shades of green or black. This discolouration is caused by an infection of the nail plate with the bacteria Pseudomonas aeruginosa. This bacterial species is commonly found in nature, including in water sources (both fresh and saltwater), plants, soil, animals, and humans.
P. aeruginosa is an opportunistic human pathogen, meaning it can cause infections in individuals with weakened immune systems or certain predisposing factors. Green nail syndrome is often associated with frequent exposure to water, soaps, and detergents, particularly in occupations such as homemakers, barbers, nail salon technicians, dishwashers, and medical personnel. Additionally, mechanical trauma to the nail, underlying nail disorders, and advanced age are also risk factors for developing this infection.
The bacteria produce blue-green pigments called pyoverdin and pyocyanin, which lead to the characteristic green discolouration of the nails. The seal between the nail and finger usually acts as a barrier to prevent infection, but when this barrier is compromised, P. aeruginosa can colonise and cause infection. This can occur due to hyper-hydration, destruction of the epidermis, or other conditions that affect the nail plate, such as onycholysis, onychotillomania, or chronic paronychia.
Treatment for green nail syndrome caused by P. aeruginosa typically involves topical antibiotics such as fluoroquinolones or aminoglycosides. In some cases, oral antibiotics may be necessary if the infection does not respond to topical treatments. Keeping the nails dry and avoiding trauma to the affected area are crucial in preventing the recurrence of the infection. Home remedies such as vinegar soaks or diluted chlorine bleach solutions may also be used to treat the discolouration and dry out the area.
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Preventative measures
Green nails are often caused by the bacterial organism Pseudomonas aeruginosa, which is frequently found in nature, including water sources, humans, animals, and soil. This bacterium thrives in moist conditions and can cause an opportunistic infection known as green nail syndrome or chloronychia.
To prevent green nail syndrome, it is important to avoid prolonged exposure of the nails to water and moisture. Here are some specific preventative measures:
- Wear protective gear: If your work or lifestyle choices constantly expose your hands to water or chemicals, wear waterproof gloves or rubber boots to protect your nails from excessive moisture.
- Avoid nail trauma: Try to avoid any trauma or damage to the nails and the epidermis seal underneath. This seal acts as a physical barrier to prevent bacterial infection, and any destruction of this seal can increase the risk of contracting green nail syndrome.
- Keep nails dry: Ensure your nails are thoroughly dry, especially after exposure to water. If you have naturally oily nail beds, consider using a dehydrator to prevent bacteria from thriving on the moisture.
- Practice good hygiene: Wash your hands frequently with water and soap or use an alcohol-based sanitizer to reduce bacterial buildup.
- Maintain nail hygiene: Keep your nails trimmed and clean. Short nails have less surface area for bacteria to colonize, and regular trimming can help prevent the buildup of moisture and bacteria.
- Disinfect nails: Use rubbing alcohol or apple cider vinegar to disinfect your nails and reduce the risk of bacterial growth.
- Sanitize tools: Sanitize or dispose of nail tools such as nail files and buffers that come into contact with your nails to prevent cross-contamination.
- Avoid artificial nails and nail polish: Continuous wear of false nails or nail polish without a break can contribute to nail discolouration. Give your nails some time to breathe and recover between applications.
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Treatments
Green nails are typically caused by an infection known as green nail syndrome. This is caused by the nail being exposed to a bacterial organism, which thrives in moist conditions. The most common cause is the bacteria Pseudomonas aeruginosa, which is found in nature, including in water sources, humans, animals, and soil.
If you are experiencing green nail syndrome, there are several treatment options available. Firstly, it is important to keep your nails dry and avoid excessive immersion in water. This can be achieved by wearing waterproof gloves or rubber boots when engaging in activities that involve water.
For mild cases of green nail syndrome, some at-home treatments can be effective. These include:
- Soaking your nails in a diluted vinegar or chlorine bleach solution at regular intervals.
- Soaking your nails in a mixture of baking soda crystals and warm water for 10 minutes daily to restore their natural colour.
- Soaking your nails in a mixture of lemon juice and warm water to help remove discolouration and brighten your nails.
If your case is more moderate, topical antibiotics may be prescribed by a healthcare provider. These can include silver sulfadiazine, gentamicin, ciprofloxacin, bacitracin, and polymyxin B. In some cases, oral antibiotics may be recommended if other therapies have failed. Tobramycin eye drops have also been shown to be effective in treating green nail syndrome.
In severe cases, surgical removal of the infected nail may be necessary. However, this is typically a last resort. It is important to consult a healthcare professional if you are experiencing green nail syndrome to receive proper diagnosis and treatment.
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False nails
If you notice a greenish discolouration on your natural nails after removing false nails, it could be due to a fungal infection or a bacterial infection known as Green Nail Syndrome.
Green Nail Syndrome
Green Nail Syndrome is caused by bacteria called Pseudomonas aeruginosa, which is commonly found in fresh and salt water, as well as in soil, humans, animals, and plants. This bacteria thrives in damp, moist environments with no fresh air circulation, which is why it often grows under false nails. The seal between the nail and finger usually acts as a physical barrier to prevent infection, but hyper-hydration or damage to the epidermis can impair this barrier, allowing bacteria to enter. The discolouration occurs due to the bacteria secreting pigments such as pyocyanin and pyoverdin. While the green stain will remain even after the bacteria is gone, it is important to note that Green Nail Syndrome rarely affects healthy individuals and is mostly seen in immunocompromised people or those with damaged nails.
Treatment for Green Nails
If you suspect you have Green Nail Syndrome, it is recommended to remove any nail enhancements and keep your nails dry to prevent further bacterial growth. You can also try the following treatments:
- Soak your nails in a solution of one part baking soda crystals to three parts warm water for 10 minutes daily.
- Soak your nails in a mixture of equal parts lemon juice and warm water for 10 minutes daily to remove discolouration.
- Use a nail whitening pen, available at most pharmacies and drug stores.
- Brush your nails with whitening toothpaste for 5 to 10 minutes to remove discolouration.
- Trim your nails and keep them short to prevent the spread of bacteria.
- File or buff off the discoloured areas, then throw away the nail file to avoid cross-contamination.
- Soak your nails in undiluted alcohol, or a 1:4 solution of chlorine bleach and water, to kill the bacteria.
- Soak your nails in vinegar (diluted with water in a 1:1 ratio) to treat the infection.
Prevention
To prevent Green Nail Syndrome, it is important to maintain proper nail care. This includes removing nail polish and false nails safely and effectively, avoiding picking or peeling off polish, and moisturising your nails and cuticles with cuticle oil. Additionally, if your work or lifestyle involves frequent exposure to water, consider wearing waterproof gloves or rubber boots to minimise direct contact with moisture.
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Frequently asked questions
Your finger nails are green due to an infection called Green Nail Syndrome.
Green Nail Syndrome is caused when the nail is exposed to a bacterial organism, which leads to an opportunistic infection. The most common cause is Pseudomonas aeruginosa, which is frequently found in nature, including in water sources, humans, animals, and soil.
There are several ways to treat Green Nail Syndrome. The least invasive treatment includes soaking the nail in alcohol and regularly trimming the nail back to dry out the area and prevent bacterial colonization. Some at-home treatments include soaking the nails in vinegar (diluted with water 1:1) or a chlorine bleach solution (diluted with water 1:4) at regular intervals.
Preventative measures such as wearing waterproof gloves or rubber boots can be effective in preventing prolonged exposure of the nails to water. Keeping the nails dry and avoiding excessive immersion of the nails are key.
Yes, wearing nail polish or false nails continually without a break can cause Green Nail Syndrome.
