Green Discoloration Under a Lifted Acrylic on a Client With Diabetes
Tanya, 51, comes in for a fill on her acrylic set. On the right index finger, the artificial nail has lifted along the sidewall, and beneath it you can see a dark green-black discoloration covering roughly a third of the nail bed, with slight thickening and a faint musty odor. The natural nail plate is separated distally. She says it started about three weeks ago and asks you to 'just file it out and fill over it, I can't have a bare nail for my daughter's wedding on Saturday.' She also mentions type 2 diabetes with a last A1c of 8.5%, and you notice a small nick on the cuticle with a bit of dried blood. Your salon uses single-use files and an EPA-registered hospital-grade disinfectant for reusable implements.
1. What do you think is happening under the acrylic, and can you fill over it? Give your reasoning.
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The picture is consistent with a bacterial infection by Pseudomonas aeruginosa, commonly called greenies: green-black pigment, a lifted seal, trapped moisture, slight thickening, and a musty odor. The pigment is bacterial byproduct in the plate, not surface stain and not dirt that filing removes.
No, you cannot fill over it. Sealing the plate under fresh acrylic recreates the warm, dark, wet environment that let the organisms multiply, and it hides progression. Drilling down to 'clean it out' is worse: it thins an already separated plate and can introduce the organisms deeper.
This is not a service you treat. A nail technician does not diagnose or prescribe and does not apply over-the-counter remedies or bleach soaks. The correct action is to remove the product, avoid trauma, keep the nail dry, and refer for evaluation, urgently if there is pain, spreading redness, pus, or fever.
Her diabetes raises the stakes. Poorly controlled glucose impairs healing and infection defense, and a minor finger infection can escalate. That makes prompt referral, not a cosmetic cover-up, the priority.
2. She still wants her nails done for Saturday. What can you safely offer today, and what do you say about the affected nail?
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Separate the affected nail from the rest of the service.
Right index: remove the acrylic gently, ideally by soaking rather than aggressive drilling, do not scrape or thin the plate, do not cover it with any artificial product, and do not apply a base coat to seal it. Trim any snag risk with a single-use file and keep it short and dry. Because she is diabetic and has a cuticle nick, avoid nipping, cutting, or pushing cuticles back aggressively on that hand; a small break is an entry point.
Other nine nails: if they show no signs of lifting, discoloration, or inflammation, you can service them normally with fresh files and disinfected implements, and give her a finished look for the wedding.
What to say: 'The green is under the plate and it means moisture and bacteria are trapped. If I fill over it, I'm sealing it in, and with your diabetes I won't take that chance. I can make the other nine beautiful today and keep this one clean and short until a doctor or dermatologist looks at it.' Offer a same-day referral if there is pain, swelling, or pus. Document the observation, your refusal to cover it, and the referral.
3. Describe the infection-control steps for this client and the documentation you would keep.
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Treat everything that touched the affected nail as contaminated.
Disposables: the file, buffer, and any bit used on that nail go into a closed waste bag, not back in the drawer and not reused on her other hand or the next client. Single-use means single use.
Reusable implements: clean mechanically first, since disinfectants fail on debris, then fully immerse in the EPA-registered hospital-grade disinfectant for the label contact time, using a product whose label claims fungicidal and bactericidal activity. Let them dry before storage. Bits are cleaned and disinfected or sterilized per manufacturer instructions.
Surfaces and hands: wipe the table and lamp, change the towel, wash your hands before and after gloves, and change gloves between her and the next client.
Record: date, nail involved, description of the discoloration and lifting, odor, absence of pus or spreading redness, that product was removed, that you declined to cover the nail, the referral, and the client's response. A photo with consent is useful. Consistent notes protect the client and show a professional standard if anyone later asks why the nail was left bare.