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Nail Fungus

Medically reviewed by Last updated on May 6, 2024.

What is nail fungus?

Nail fungus, or onychomycosis, is a fungal infection in your toenail or fingernail. Nail fungus is more common in toenails than fingernails. The cause of the infection may not be known.

What increases my risk for nail fungus?

What are the signs and symptoms of nail fungus?

How is nail fungus diagnosed?

Your healthcare provider can usually diagnose nail fungus by examining your nails. A small nail clipping may be examined or sent to a lab to test for infection.

How is nail fungus treated?

Antifungal medicine is a pill that treats a fungal infection. You may need to take this medicine for up to 12 weeks. Topical treatments include creams and polishes that you apply to the top of your nail. You may need to use topical treatments for up to 1 year before you see positive results. Ask your healthcare provider for more information about antifungal medicine.

How can I manage my symptoms?

How can I help prevent nail fungus?

When should I contact my healthcare provider?

You have questions or concerns about your condition or care.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.