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Fungal nail infection

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Introduction
A fungal nail infection is where the hard material that makes up the nails (keratin) becomes infected with fungi.
Signs and symptoms of a fungal nail infection
The most common symptom of a fungal nail infection is the nail becoming thickened and discoloured. The nail can turn white, black, yellow or green.
Causes of a fungal nail infection
The most common causes of fungal nail infections are a fungal skin infection or damage to the nail or skin.
Treating a fungal nail infection
Treatment may not be needed in mild cases of fungal nail infection. Antifungal medication may be recommended for more severe cases.