Green Nail, Dark Band, and Bumps: What Can You Safely Service?
A 34-year-old client comes for a gel manicure. On the right thumbnail, the distal half is lifted and has a green-black discoloration; the area is not painful and there is no pus. On the left thumbnail, a new longitudinal dark brown band runs from the cuticle to the free edge; the client says it appeared about three months ago and seems to be widening. Around the right index nail there are two small, rough, flesh-colored bumps. She wants you to "cover the green with acrylic" and "paint over the line." She has no regular doctor and says she cannot take time off work for appointments. She is otherwise healthy, not pregnant, and not diabetic.
1. For each finding, give the most likely category and state whether it is contagious or potentially serious.
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Finding-by-finding assessment
- Green-black discoloration with lifting: Most consistent with Pseudomonas bacterial colonization under the lifted nail. It is not a true fungal infection. It is not usually systemic, but it is contagious through contaminated tools, files, and water, and it can worsen or spread. Do not cover it.
- New longitudinal brown band: This is melanonychia. A new or widening band, especially one that reaches the cuticle, requires dermatology evaluation to rule out subungual melanoma. It is not contagious, but it is potentially serious.
- Rough flesh-colored bumps around the nail: Most consistent with periungual warts (HPV). They are contagious and should not be treated by a nail technician.
Reasoning: The technician does not diagnose, but must recognize patterns that change the service plan. The green nail and warts are infection-control problems; the band is a referral problem. None should be covered with an enhancement.
2. Which services, if any, can you perform today? What referral and timeline do you recommend?
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Services today
Do not apply gel or acrylic over the green nail or the band. Do not buff or drill the band. You may perform a basic manicure on healthy nails using properly disinfected implements, but avoid the affected nails and the warts. If the client wants color on unaffected nails, use a fresh file and avoid cross-contamination.
Referrals:
- The longitudinal band should be evaluated by a dermatologist promptly-within weeks, not months-and sooner if it widens, darkens, or involves the cuticle.
- The green nail should be referred if it spreads, becomes painful, or if the client has diabetes or immune suppression.
- The warts should be evaluated by a physician; do not cut, freeze, or apply chemicals.
Reasoning: A manicure is not worth covering a possible melanoma or spreading bacteria. Giving a clear timeline helps the client act without alarming her unnecessarily.
3. How should you manage implements and communicate with this client?
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Implement control
Use a disposable file or bit on the affected nail, then discard it. Metal implements must be cleaned of debris, then completely immersed in an EPA-registered hospital-grade tuberculocidal disinfectant for the label contact time. Do not double-dip into a shared product. Store clean implements in a covered container. Warts and green nails are reasons to use dedicated or disposable items, not just a quick wipe.
Communication: Use plain language: "This green area looks like bacteria under a lifted nail, and covering it can make it worse." For the band: "A new dark stripe needs a doctor's check to rule out a serious cause." Do not say "it's cancer" or "it's fungus." Document the findings, the refusal to cover, the referral, and the client's response.
Reasoning: The goal is to inform without diagnosing and to avoid an enhancement that conceals a condition that needs medical care. Accurate documentation protects both the client and the technician.