5.3 Nail Disorders & Advanced Nail Services
Key Takeaways
- An operator may service nail DISORDERS (non-infectious, like ridges or hangnails) but must REFER any disease — infection or inflammation (suffix -itis), fungus, or undiagnosed condition — to a physician.
- Onychomycosis (nail fungus), paronychia (-itis around the nail), and onychia must be referred and not serviced.
- Acrylic (sculptured) enhancements cure by a chemical reaction between a liquid monomer and a powder polymer; gels cure under UV or LED light.
- Texas bans Methyl Methacrylate (MMA) liquid monomer under 16 TAC Section 83.112; only Ethyl Methacrylate (EMA) and other safe monomers are allowed, and possessing MMA on a licensed premise is a violation.
- Nail enhancement chemicals can cause overexposure and allergic dermatitis, so wear gloves, ensure ventilation, and keep monomer off the skin and eponychium.
- Proper prep — push back the eponychium, remove shine, dehydrate, and apply primer sparingly — is essential to prevent lifting and bacterial infection under enhancements.
5.3 Nail Disorders & Advanced Nail Services
The exam tests one judgment over and over: disorder vs. disease. A nail disorder is a non-infectious condition you may safely service or work around; a nail disease involves infection or inflammation and must be referred to a physician — you must not service it. A reliable clue is the suffix -itis (inflammation) and any sign of pus, swelling, redness, or fungus.
Disorders You May Service
| Disorder | Description |
|---|---|
| Onychorrhexis | Brittle nails with lengthwise (vertical) ridges/splits |
| Leuconychia | White spots from minor air pockets/trauma |
| Hangnail (agnail) | Split cuticle/eponychium skin |
| Furrows (corrugations) | Wavy ridges across or down the plate |
| Onychophagy | Bitten nails |
| Pterygium | Forward growth of skin attached to the plate (handle gently) |
Diseases You MUST Refer
| Condition | Why refer |
|---|---|
| Onychomycosis | Fungal infection of the nail |
| Paronychia | Bacterial inflammation/infection AROUND the nail (-itis) |
| Onychia | Inflammation of the nail matrix with pus |
| Tinea pedis | Athlete's foot fungus |
| Onycholysis | Plate lifting/separating from the bed — refer if from disease |
Worked example: a client has a red, swollen, pus-filled ridge of skin beside the nail. That is paronychia — an infection. The correct action is to decline service and refer to a physician, not to soak and push the area.
Nail Enhancements — Chemistry
Enhancements add length or strength over the natural plate or a tip. Know how each cures:
- Acrylic (sculptured) nails — a two-component system: a liquid monomer mixed with a powder polymer. They join in a chemical reaction (polymerization) that hardens at room temperature; no light is needed. A dehydrator and primer improve adhesion.
- Gel nails — a pre-mixed gel that hardens (cures) only under UV or LED light. Improper light/wattage causes undercuring and lifting.
- Wraps (silk/fiberglass) — fabric mesh adhered with resin and an activator to reinforce or repair the plate.
- Dip systems — adhesive base plus a powder polymer, no light required.
Lifting (separation at the edge) usually traces to poor prep or oily/contaminated nails. Correct prep: gently push back the eponychium, lightly buff to remove shine, dehydrate, apply primer sparingly (acid primers are corrosive — keep off skin), then build product without flooding the cuticle area, which traps moisture and breeds bacteria (a green discoloration under the enhancement signals a bacterial infection, often pseudomonas — remove and refer).
The MMA Prohibition — Critical Texas Rule
The most important Texas-specific fact in this chapter: Methyl Methacrylate (MMA) liquid monomer is prohibited. Under 16 Texas Administrative Code Section 83.112, a licensee may not use MMA, and possession of MMA on a licensed premise is itself a violation subject to penalty. Texas first restricted MMA on nails in the 1970s because it is a hard, dental-grade acrylic that bonds too tightly: the enhancement is so rigid that trauma rips the natural nail off the bed instead of popping the product off, and the strong fumes cause respiratory and allergic reactions.
The legal alternative is Ethyl Methacrylate (EMA) monomer (and other approved monomers), which is more flexible and safer. Exam red flags that a salon is illegally using MMA:
- An unusually strong, sharp chemical odor ("fruity"/fishy)
- Product that will not soak off in standard acetone
- Enhancements that are extremely hard and difficult to file
- An unlabeled monomer or a labeled MMA container on premise
Overexposure and Safety
Nail chemicals cause harm through overexposure (repeated, cumulative contact). Protect yourself and the client:
- Wear gloves and ensure local exhaust/ventilation; keep dust and vapors down.
- Keep monomer and primer off the skin and eponychium — repeated skin contact causes allergic contact dermatitis (redness, itching, separation) that can end a tech's career.
- Store products in labeled, closed containers; follow the Safety Data Sheet (SDS).
- Never use a product that has separated, expired, or is unlabeled.
Remember the chain: correct chemistry (EMA not MMA) + correct prep + ventilation and gloves = durable enhancements without infection or overexposure.
Maintenance, Removal, and Common Traps
Enhancements need a fill (rebalance) every two to three weeks as the natural nail grows out and a gap forms at the cuticle area. Neglected enhancements lift, trap moisture, and grow bacteria or mold-like discoloration underneath. To remove acrylic or dip product, soak in acetone (warm bath or saturated cotton wrapped in foil) — never pry or force the product off, which tears the natural plate. Gel often must be filed/buffed off because it does not dissolve as readily.
Exam-style judgment calls to expect:
- A green or black spot under an enhancement signals a bacterial (often pseudomonas) infection from trapped moisture — remove the product, do not reapply, and refer if it does not resolve.
- A nail that is lifting at the edges points to poor prep (oil/shine not removed, primer flooded, or product applied over the cuticle).
- Onycholysis (plate separating from the bed) under or near an enhancement is a reason to refer, not to refill.
- An extremely hard product that will not soak off in acetone plus a sharp odor is the classic signature of illegal MMA.
Finally, always perform a fresh sanitation cycle, set up over a sanitized table, and apply enhancements only to a healthy natural nail free of disease. When in doubt between a disorder you may service and a disease you must refer, refer to a physician — protecting client health and your license is the priority the exam always rewards.
During an inspection, a Texas nail technician is found with a bottle of Methyl Methacrylate (MMA) liquid monomer at the station, though it is unopened. Under TDLR rules, this is:
A client's nail shows a swollen, reddened, pus-filled area in the skin fold beside the nail. What should the operator do?