Toenail Fungus

Is my toenail actually fungal?

Toenail fungus, also called onychomycosis, can make a nail yellow, white, thick, brittle, crumbly, or lifted from the nail bed. Trauma, tight shoes, psoriasis, and normal aging can look similar. That is why treatment should begin with a diagnosis rather than an assumption.

Common signs of toenail fungus

• Yellow, white, or brown discoloration
• Thickening or crumbling at the edge
• Debris beneath the nail
• A nail that lifts or changes shape
• Pressure or tenderness inside shoes

Fungus can affect one nail or several nails. Athlete's foot may also be present between the toes or along the sole.

How we evaluate a changed toenail

We review when the change started, shoe pressure, injuries, skin symptoms, medications, and previous treatments. The nail and surrounding skin are examined. When the diagnosis is uncertain or oral medication is being considered, a clipping or other fungal test may be recommended.

Treatment options

The right plan depends on diagnostic certainty, the number of nails involved, nail thickness, discomfort, health history, and treatment goals. Options may include:

• Prescription topical antifungal medication
• Oral antifungal medication when appropriate
• Professional thinning or trimming for pressure relief
• Laser treatment as part of a broader plan for selected patients
• Treatment for athlete's foot and shoe hygiene to reduce recurrence

Healthy nail growth is slow. Even after the infection is controlled, the damaged portion must grow out. No treatment can guarantee that fungus will not return.

When should I make an appointment?

Schedule a visit when a nail is painful, rapidly changing, lifting, draining, or difficult to trim safely. People with diabetes, poor circulation, neuropathy, or a history of foot wounds should avoid aggressive home trimming and seek professional care.

Related care

You may also want to learn about athlete's foot, medical pedicures, and KeryFlex nail restoration.

Frequently asked questions

Will I need an X-ray or another test?

Testing depends on the examination and the suspected cause. Imaging is recommended when it can answer a specific question or change the treatment plan.

Can I continue my normal activity?

Activity guidance depends on pain, stability, strength, and the risk of making the problem worse. The clinician will explain what is safe to continue and what should be modified.

When should I schedule an appointment?

Schedule when symptoms persist, return repeatedly, limit walking or exercise, or cause concern about a new injury or change in the foot.

Schedule a foot and ankle visit

Signature Foot and Ankle provides care in Boynton Beach and Loxahatchee. Call 561 203 9285 or request an appointment online.