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Toenail Problems Guide 2026: Causes, Treatment & Expert Advice

What Are the Most Common Toenail Problems?

The most common toenail problems are fungal infections (onychomycosis), ingrown toenails, nail color changes (white, black, yellow), thickened nails, and nail separation. Most conditions are treatable in a podiatrist’s office — often same-day — and are covered by insurance when medically indicated. This guide organizes every toenail condition, color change, and treatment option we cover at Balance Foot & Ankle in Howell and Bloomfield Hills, MI.

Same-day appointments available: Book online · (810) 206-1402 · Howell & Bloomfield Hills, MI


Toenail Fungus (Onychomycosis)

Toenail fungus is the most common nail condition we treat, affecting roughly 10% of the population. It causes thickened, discolored, crumbly nails and requires prescription treatment to fully clear. The guides below cover every aspect from diagnosis to oral vs. topical vs. laser options.

Ingrown Toenails

Ingrown toenails occur when the nail edge grows into surrounding skin, causing pain, swelling, and infection risk. Podiatrists can permanently correct ingrown nails with a 15-minute in-office procedure (matrixectomy) that prevents recurrence in over 95% of cases.

Toenail Color Changes

Color changes in toenails — white spots, black streaks, yellow discoloration — have very different causes, from trauma to systemic disease to melanoma. Knowing which color change needs immediate evaluation versus watchful waiting can be critical.

White Toenails

Black & Dark Toenails

Yellow Toenails

Other Color Changes

Nail Separation & Shedding

When a toenail partially or fully lifts from the nail bed, it’s called onycholysis. Complete shedding (onychomadesis) can follow injury, illness, or fungal infection. Understanding the cause determines whether intervention or simply protection is needed.

Thickened & Deformed Toenails

Thickened toenails become extremely difficult to cut and can cause pain in footwear. Several conditions cause progressive nail thickening — some cosmetic, some requiring medical management.

Nail Trauma & Wounds

Systemic Conditions That Affect Toenails

Many systemic diseases first show signs in the nails. Autoimmune, nutritional, and systemic disorders all produce characteristic nail changes that experienced podiatrists recognize.

Nail Procedures at Balance Foot & Ankle

Our podiatrists in Howell and Bloomfield Hills, MI perform all nail procedures in-office, typically in under 30 minutes with local anesthesia. Most are covered by insurance when medically necessary.

  • Nail avulsion — partial or total nail removal for infection or trauma
  • Permanent matrixectomy (phenol) — eliminates the nail root to prevent regrowth in chronic ingrown nails
  • Nail debridement — safe trimming and thinning of thickened nails (covered by Medicare under certain criteria)
  • MLS laser therapyFDA-cleared laser treatment for toenail fungus and nail bed infections
  • Biopsy for melanonychia — tissue sampling when dark nail streaks cannot be explained by trauma alone

Ready to get your toenail problem diagnosed and treated the same day? Book your appointment → or call (810) 206-1402.

Frequently Asked Questions About Toenail Problems

How do I know if my toenail problem is serious?

See a podiatrist if you notice a dark streak under a nail (possible melanonychia), spreading redness or warmth around the nail (infection), or a nail that won’t regrow normally. Most color changes and texture changes are benign, but a trained podiatrist can distinguish cosmetic issues from conditions requiring urgent care.

Does insurance cover toenail treatment?

Most PPO plans cover medically necessary nail procedures including ingrown nail removal, nail debridement for symptomatic thickened nails, and treatment of infected nails. Medicare Part B covers routine nail care for qualifying conditions such as mycotic nails in diabetic patients. Call our office at (810) 206-1402 to verify your specific coverage.

Can toenail fungus go away on its own?

Toenail fungus almost never resolves without treatment. Over-the-counter topicals have limited penetration through the nail plate. Prescription oral antifungals (terbinafine) have a 70-80% cure rate. MLS laser therapy is an effective option for patients who cannot take oral medication. The sooner treatment begins, the less nail involvement there will be to clear.

How long does it take for a toenail to grow back after removal?

A great toenail takes 12-18 months to fully regrow. Lesser toenails take 6-12 months. After nail avulsion, the nail bed is protected with a dressing. A new nail begins growing from the matrix within 2-4 weeks. See our toenail regrowth timeline guide for week-by-week expectations.

What causes toenails to turn white after removing nail polish?

White, chalky toenails after nail polish removal is almost always keratin granulation — a superficial reaction where nail cells clump from dehydration under polish, not fungal infection. The treatment is simple: leave nails polish-free for 4-6 weeks and apply a nail conditioner. It resolves completely on its own.

What are the most common toenail problems?

The most common toenail problems seen by podiatrists include toenail fungus (onychomycosis), ingrown toenails, thickened or discolored nails, nail trauma, and nail psoriasis. Each condition has distinct causes and treatments, so an accurate diagnosis from a podiatrist is important before starting treatment.

When should I see a podiatrist for a toenail problem?

See a podiatrist if your toenail is thickened, yellow, brown or white, crumbling, painful, ingrown, or separating from the nail bed. Diabetic patients should seek prompt care for any nail change, as infections can progress rapidly. Early treatment typically leads to better outcomes and prevents spread to adjacent nails.

Can toenail fungus spread to other nails or people?

Yes. Toenail fungus (onychomycosis) is contagious and can spread to adjacent nails, cause athlete’s foot on the surrounding skin, and transmit to family members through shared showers or nail tools. Treatment requires prescription antifungal medication — topical treatments for mild cases, oral medications for moderate to severe infections.

How are ingrown toenails treated by a podiatrist?

Mild ingrown toenails can initially be managed at home with warm soaks, gentle nail edge lifting, and proper trimming. For painful, infected, or recurring ingrown toenails, a podiatrist performs a partial nail avulsion — removing the ingrown portion under local anesthesia, often with phenol applied to prevent regrowth permanently.

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Ready for expert care? Learn about Toenail Care & Ingrown Toenail Treatment at Balance Foot & Ankle

Balance Foot & Ankle surgeons are affiliated with Trinity Health Michigan, Corewell Health, and Henry Ford Health — three of Michigan’s largest health systems.