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Knowledge Base
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- Bruised nail
- Calluses and corns
- Chloronychia
- Dermatitis
- Dermatophyte and non-dermatophyte fungi
- Erythronychia
- Habit-tic
- Hangnails
- Hapalonychia
- Heller's Median Nail Dystrophy
- Hyperhidrosis
- Introduction to Nail Conditions
- Koilonychia
- Lamellar Dystrophy
- Leukonychia
- Nail biting
- Nail Clubbing
- Nail Grooves / Depressions
- Onychocryptosis
- Onycholysis
- Onychomadesis
- Onychomycosis
- Psoriasis
- Pterygium
- Splinter haemorrhages
- White Superficial Onychomycosis
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Ask the Experts
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- Can I cut the keratinised proximal nail fold?
- Can I use just acetone to cleanse the nail plate before a service?
- Can Nail Polish be Organic?
- Can the cuticle cover the whole nail?
- Do all nail plates grow 1mm a week?
- Do manicures ruin your nails?
- Hangnails. What's your advice?
- How do I save a cut nail?
- How does cold weather affect the nails?
- Is calcium good for nails?
- Is cuticle remover a must-have?
- Is nail polish safe to use for repetitive use on clients because it 'can't store pathogens'?
- What are these thin black lines under the nail?
- What is a dry manicure?
- What is a Japanese manicure?
- What is a wet manicure?
- What is the safest type of manicure?
- What's the best type of manicure to get?
- What's the difference between a French manicure and an American manicure?
- What's the harm with a water soak?
- Which is better? Soap and water or hand sanitiser before a service?
- Which way to brush off the dust?
- Why do nail polish top coats get stringy when applied?
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- Acid-based or acid-free primers?
- Can I e-file the natural nail underneath an enhancement?
- Do acrylics have a limited future?
- Does a universal monomer exist?
- How much product to remove during rebalance?
- Pinching enhancements?
- To infill or to soak off?
- To pinch the nail enhancement or not?
- What do I do with my leftover monomer?
- What is the difference between a French manicure and pink and white?
- What size brush to use?
- Why do nails feel thin after the removal of a nail coating?
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- A chemical burn?
- Can I get a headache from working with nail products?
- Can I use my oven to sterilise my tools?
- Can I work on diabetic clients?
- Do I need qualifications to do nails?
- Enhancements on Nail Biters?
- Fluff vs synthetic brush for dusting
- Is an E-File safe to use?
- Is Covid or hand sanitising affecting nail services?
- My client has chipping/loss of enhancement and I’ve never had this before?
- Should a mask be worn throughout the whole service?
- Should I use a ‘protein bonder’ to prevent lifting?
- Should you pour the end of an old bottle into the new?
- Some of my clients are getting heat spikes when curing the base and top coat.
- UV light cabinets for nails files?
- What are the legal requirements for the treatment of minors?
- What is a Brazilian style manicure?
- What is a combi manicure?
- What is a Russian manicure?
- What is the difference between cleaning, disinfection and sterilisation?
- What is the difference between HEMA and di-HEMA?
- When do nail products expire?
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- Acrylates in gel-like nail polishes?
- Can I get a headache from working with nail products?
- Can my client be allergic to acetone?
- Do I have an allergy or an irritation?
- How did I get an allergy to gel?
- Is acetone safe for removing nail products?
- What UV gel brands do you recommend?
- Why are we seeing more reactions from gel polish services vs gel enhancement services?
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- Are hard gels for everyone?
- Are UV gels better for nails?
- Can I e-file the natural nail underneath an enhancement?
- Do gel nails ruin your nails?
- Does freeze curing interrupt the curing process?
- Does using UV gel with full cover clear tips cure properly?
- How can I find a non-toxic UV gel polish range?
- How much product to remove during rebalance?
- Inhibition layer and no-cleanse gels
- Removing undercured gel
- Should I buy my nail lamp based on wattage?
- Should I get gel or dip nails?
- Should my clients wash their hands before I apply oil?
- Should UV Gels "Burn Like Crazy"?
- To infill or to soak off?
- To pinch the nail enhancement or not?
- Using cuticle oil during soak-off?
- What does 'overcured' really mean?
- What is the correct method for applying a 'BIAB' type product?
- What is the difference between a French manicure and pink and white?
- What is the difference between HEMA and di-HEMA?
- What UV gel brands do you recommend?
- Why are we seeing more reactions from gel polish services vs gel enhancement services?
- Why do nails feel thin after the removal of a nail coating?
- Why do some UV gel colors fade?
- Why do you advise wiping a no wipe to coat?
- Will an LED table lamp affect LED-cured gels?
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- Do Nails Need to Breathe?
- How do I avoid ‘greenies’?
- How do I treat ‘green nail syndrome’?
- How does cold weather affect the nails?
- I'm pretty sure my UV gel manicure client has WSO
- Leukonychia or not?
- Lichen Planus. What do I do?
- The onychomycosis (fungal nail) test is positive... Now what?
- What are these thin black lines under the nail?
- What is Onycholsyis?
- What to do with unhealthy nails?
- Why are there ridges in my nails?
- Why is silk or fibreglass good on thinner / damaged and weaker nails?
- Why should we NOT cover "greenies"?
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Chloronychia
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What is Chloronychia and what causes it?
Chloronychia, also known as ‘greenies‘ or ‘green nail syndrome‘, is a condition where green, greenish-yellow or greenish-brown spots appear on the fingernails. This is usually due to water being trapped between the natural nail and artificial nail enhancements, or when nail antiseptics are ignored during the preparation step of the sculpting services in salons.
While many nail professionals still consider the condition as a mold or onychomycosis, the infection is caused by bacteria Pseudomonas aeruginosa. This is not a fungal infection and so topical antifungals will not work. The condition releases bacterial spores which can infect nail plates with pyocyanin, causing the discolouring. The condition can be extremely dangerous when the infection goes beyond the nail plate and infects the soft tissues, especially in immunocompromised people.
Who does it affect?
Anyone, especially clients of salons where the use of antiseptics is ignored. It can occur on any part of the nail plate.
How can nail technicians help?
If the condition remains untreated, the infection can spread to surrounding soft tissue and cause severe bacterial inflammation. It can be easily treated and removed while it is within the nail plate. If the condition appears in soft tissue around the nail plate then the client should seek medical advice.
Nail technicians should remove all artificial enhancements right away and allow the discolouration to grow out. Recent research has shown that secondary infections can occur due to the exposure of proteins within the nail plate. Therefore reapplication of coatings (other than a traditional nail polish to hide the stain temporarily) should be avoided.
It has long been thought that the exposure to oxygen once the coating has been removed will kill the bacteria. Recent research has shown this to be untrue. Some infections thrive in oxygen. Another reason why coatings (other than traditional nail polish) must be avoided until the infection has grown out.
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