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Toenail Fungus: Causes, Symptoms, Stages & Treatment
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Understand why toenail fungus develops and who is most at risk. Explore the causes behind fungal nail infections — from shoes and pedicures to acrylic nails and athlete’s foot — and learn how to reduce your chances of getting or spreading it.

Toenail fungus is contagious — and shoes are the most overlooked source of reinfection. Learn exactly how it spreads and how to protect yourself and others.