14.2 Nail Disorders, Diseases & Contraindications
Key Takeaways
- Disorders are often serviceable with caution when skin is intact and no infection is evident; diseases and infectious conditions are stop-and-refer findings.
- Onychomycosis, paronychia, tinea pedis, and pyogenic granuloma are not “push through and polish” problems—discontinue and refer.
- OAC 175:10-7-20 requires universal precautions, discontinuation, and physician referral when a communicable or infectious disease is suspected; do not massage inflamed, open, or infected surfaces.
- OAC 175:10-7-14(e): if nail disease is evidenced before an enhancement or manicure, do not proceed; if it appears after, refer; no further manicuring until hands, nails, and fingers are free and clear.
- Record nail service history, products, bit/file notes, health cautions, and refusals on a salon client card; Title 175 does not publish a mandatory statewide card, so do not invent a Board form.
14.2 Nail Disorders, Diseases & Contraindications
Quick Answer: If you see infection, pus, open lesions, fungus, or inflamed folds, you do not complete the manicure or enhancement. OAC 175:10-7-20 and 175:10-7-14(e) require you to stop, protect yourself with universal precautions, refer, and withhold further nail service until the area is free and clear. Cosmetic disorders without infection may still be serviceable with gentle technique.
NIC Nail Care expects you to recognize when a condition is a disorder you can work around versus a disease or infectious process you must not serve. Oklahoma adds a legal overlay: this is not salon preference. If disease is evidenced, the licensee shall not proceed.
Disorder versus disease (exam language)
Disorders are abnormalities of the plate or surrounding tissue that are often non-infectious: trauma, habits, dryness, aging ridges. Many can be improved cosmetically if the skin is intact.
Diseases in this chapter are pathologic processes—fungal, bacterial, or severe inflammatory lesions—that belong with a physician or health clinic, not under polish. Oklahoma does not ask you to diagnose like a dermatologist. It asks you to recognize evidence of infection or communicable disease and get out of the way.
OAC 175:10-7-20:
- Use universal precautions (treat blood and body fluids as infectious).
- If you have reason to suspect a patron has a communicable or infectious disease, wash and disinfect your hands, discontinue services, and refer to a physician.
- Do not massage a surface that is inflamed or has open cuts, lesions, or infection.
- Infected licensees and patrons are not supposed to work through a communicable disease in the establishment.
OAC 175:10-7-14(e) is nail-specific: stay alert before and after sculptured nails, tips, and other artificial procedures. If evidenced prior to service, do not proceed. If infection or disease shows after application, refer to a physician or health clinic. No further manicuring until hands, nails, and/or fingers are free and clear of the disease or infection.
That last sentence is a favorite trap. “I will just do a clear coat until it looks better” is still further manicuring.
Serviceable disorders (caution, not a disease stamp)
These are often serviceable when there is no pus, no spreading redness, no open wound, and no suspected fungus. “Often” is not “always.” If it looks infected, it moves to the stop column.
| Condition | What you see | Service decision |
|---|---|---|
| Hangnail (agnail) | Split, torn living skin beside the nail, usually from dryness | May trim loose dry skin carefully if not infected; never rip. Infected hangnail → stop |
| Bruised nail | Dark spot under the plate from trauma (blood trapped) | May service if not painful/open; do not drill out the bruise. Painful, fresh injury → postpone |
| Ridges | Longitudinal lines; common with aging | May gently buff to smooth; do not thin the plate to glass. Ridge filler is cosmetic, not a cure |
| Eggshell nails | Thin, white, flexible, curved plate | Service with extreme care: no aggressive filing, no heavy enhancement without judgment; protect from extra trauma |
| Onychophagy | Bitten nails and often bitten skin | May service if folds are not infected; do not lecture instead of analyzing for paronychia |
| Onychorrhexis | Split or brittle nails, lengthwise splitting | May service with oil, gentle filing, and avoiding sawing; look for chemical overexposure or dryness |
| Beau's lines | Horizontal depressions that grow out after illness, high fever, or matrix shock | Usually serviceable as a growth record; do not file the groove away into the bed |
List of gentle rules when you do serve a disorder:
- Keep the plate as thick as function allows—buffing is smoothing, not grinding to the bed.
- Do not put a sealed enhancement over a plate you cannot see (14.4 continues this).
- Hangnails get clip-and-moisturize, not “cut until the fold is a straight line.”
- Bruises are not polish problems; document trauma history in your analysis.
- Bitten skin that is red, wet, or pus-filled is no longer a habit disorder—it is an infection screen.
Stop-and-refer diseases and high-risk findings
Memorize the disease names. Written items love the Greek. Practical and law items love the behavior: stop, refer, do not reuse the basin on a foot with athlete’s foot.
| Condition | Category | What you see | Action |
|---|---|---|---|
| Onychomycosis (tinea unguium) | Disease — fungus | Thick, discolored (white/yellow/brown), crumbly plate, debris, sometimes odor | Stop. Refer. Do not file a cloud of fungal debris into the room and call it prep |
| Paronychia | Disease — bacterial (often) infection of the fold | Red, swollen, painful eponychium/perionychium, possible pus | Stop. Refer. This is not cuticle dryness |
| Tinea pedis | Disease — fungus of the foot | Itching, scaling, blisters, maceration especially between toes | Stop. Refer. Do not place that foot in a shared pedicure bowl |
| Pyogenic granuloma | Disease — severe inflammatory lesion | Lump of red tissue in the nail area, often with inflammation | Stop. Refer. Not a “buff and polish” |
| Onychocryptosis | Ingrown nail | Plate grows into the lateral fold; may be only tender or may be infected | If inflamed/infected: stop and refer. Do not become a surgeon with nippers |
| Onycholysis | Plate lifting from the bed | White/air space; may be trauma; yellow-green can mean colonization | Do not overlay a lifted plate. Infection or unexplained lifting → refer |
| Pterygium | Abnormal skin stretched onto the plate | Forward (eponychium onto plate) or inverted (hyponychium) | Do not rip skin off the plate. Severe pterygium → refer |
Onychomycosis is the name you must not confuse with onychophagy (biting) or onychorrhexis (splitting). Only the mycosis is a fungal disease of the plate.
Tinea pedis is why pedicure-basin disinfection in 14.3 exists—but disinfection is not permission to serve an active infection. Clean equipment does not make an infected foot legal to soak.
Decision rule you can use in 15 seconds
Ask, in order:
- Is there pus, open skin, spreading redness, heat, or suspected fungus? → Wash/disinfect your hands, discontinue, refer (175:10-7-20). No massage on that surface.
- Is this an enhancement or manicure request with disease evidenced? → Do not proceed (175:10-7-14(e)).
- Did something appear after you already applied product? → Refer to physician or health clinic; no further manicuring until free and clear.
- Is it a dry hangnail, ridge, bruise without pain, brittle split, or bitten plate with intact folds? → Serviceable with caution; still sanitize implements per 14.3.
Cosmetologists do not prescribe antifungals. You also do not “try one more fill” on a green, wet, or lifting nail. Independent OpenExamPrep practice for Oklahoma candidates treats referral language as a scored behavior, not optional customer service.
Nail client records: history, card, health screen, refusals
NIC Nail Care includes establish/maintain client records. Independent OpenExamPrep teaches that as a nail-table intake—not a haircolor patch-test log and not a Fitzpatrick skin-type chart.
Title 175 does not publish a mandatory statewide client-card form. The same caution as hair chapter 6.4 applies: keep thorough salon records; do not tell an examiner that OSBCB issues one official numbered nail card every shop must photocopy.
Service history to ask and write before you soak, e-file, or overlay:
- Past enhancements: tips, wraps, liquid-and-powder, UV/LED gel, dip
- Chemistry actually on the plate: MMA (prohibited in Oklahoma under 175:10-7-14(f)) versus EMA or other labeled monomer, gel system, or dip resin
- Prior infection, green discoloration, lifting, or physician-treated fungus
- Date of the last fill or last soak-off/file-off, and whether product was ripped off
Client card fields that help the next visit:
| Field | What to write |
|---|---|
| Date | Calendar date of this appointment |
| Service | Manicure, pedicure, fill, removal, polish-only |
| Products | Brand/system, primer, dehydrator, color, monomer/powder or gel |
| Bit/file notes | E-file bits used, grit, single-use sanding bands discarded |
Nail-relevant health screen (you are not diagnosing a disease):
- Client-reported diabetes or neuropathy (reduced sensation in hands or feet) is a referral caution, especially for pedicure heat, long soaks, and any temptation to use banned callus blades. You do not diagnose diabetes; you do decide whether the cosmetic service is unsafe to continue and whether to postpone or refer.
- Open lesions, cuts, or inflamed folds → stop under 175:10-7-20.
- Suspected fungus (onychomycosis, tinea pedis) → do not proceed; refer under 175:10-7-14(e).
Contraindication/refusal documentation: if you refuse or discontinue, record the date, what you observed, that you did not proceed, and that you referred to a physician or health clinic. Leaving the card blank after a fungal refusal does not prove 175:10-7-14(e) was followed. “Client insisted on red polish” is not a substitute for a stop note.
If blood is drawn from a hangnail nick, that is a blood-exposure protocol moment (universal precautions under 175:10-7-20), not a reason to finish the red polish first. The Oklahoma practical kit even lists alcohol 70% or hand sanitizer and a taped plastic bag because examiners watch whether you contain contamination. Theory and practical share the same stop rule: infection and open lesions end the cosmetic service.
Onychomycosis of the fingernail is best handled how in an Oklahoma salon?
A client has a dry hangnail with no redness, pus, or open weeping. What is the usual textbook service decision?
Under OAC 175:10-7-14(e), if nail infection is evidenced after a tip application, the licensee must:
Tinea pedis showing as itchy scaling between the toes means the cosmetologist should:
A client wants a gel fill. Which nail-record practice is correct for Oklahoma exam study?