Green Nails, what causes them?

Green Nails

Do you have Green Nail Syndrome or GNS?

If your nails exhibit a dark green or blueish green color you could have (GNS) – Green Nail Syndrome. GNS is ususually seen in one or two mails but can affect both fingernails and toenails. It is usually painless, however the skin around the nail and the cuticle can become red and swollen. This area can also become tender.

It’s medical name is Chloronychia. Green Nail Syndrome is something to be taken serious. You just can’t wash it away. More than likely you will need treatment.

What causes GNS?

Most commonly, green nails develop on lifted or damaged nail beds. This allows bacteria and dirt to infiltrate underneath. This bacteria proliferates under high-moisture conditions with a lack of airflow.

The bacteria is Pseudomonas aeruginosa bacteria. This bacteria produces an acetic acid that discolors nails given them a bluish/green color or tint.

How can I treat green nails?

You can use topical antifungal medicine such as Nailon 5 ml to cure green nails in most cases. Nailon 5 ml is available at USA Service Online Pharmacy and other reputable pharmacies.

In more severe cases oral antibiotics or injections are needed. And in the most severe cases the nail bed needs to be removed. That is why GNS should always be treated.

Why is my nail turning green under my acrylic?

Bacterial or fungal infections.

If you bang your artificial nail against something, you may dislodge your real nail from the nail bed. Germs, yeast, or fungus can get into the gap and grow. A bacterial infection can turn your nails green.

How can you prevent GNS?

Pseudomonas bacteria are common and your hands and nails are always exposed. Always keep your hands and feet clean and dry.

If you exercise make sure you dry your feet and change your socks after a long period of exercise. Try to keep your fingers dry as much as possible. Make sure you wear shoes of the correct size to keep pressure off your toenails.

If you notice a raised nail bed check the nail and keep it clean and dry. Avoid banging or other trauma to that nail. This will lesson the chances of GNS entering that nail.

If you wear acrylic nails be careful to not bang your nails. Banging or other trauma to the attached acrylic nail can cause unnatural movement and raise your nail away from the nailbed. This can allow bacteria to enter and promote GNS.


GNS is unsightly, and the bacteria will continue to grow to envelop the entire nail if left untreated. In some rare cases, the bacteria may spread from the infected nail to other nails. GNS can even spread to other parts of the body. Nail polish only covers up the problem and does not cure it. To cure GNS you need treatment such as Nailon 5ml. 


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