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Fungal nail infections

A fungal nail infection affects a toenail or fingernail and is caused by dermatophytes, yeasts or other fungi. The nail often becomes thick, discoloured and crumbly. Many other nail changes look similar; confirming the diagnosis is particularly important before a long course of tablets.

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A fungal nail infection affects a toenail or fingernail and is caused by dermatophytes, yeasts or other fungi. The nail often becomes thick, discoloured and crumbly. Many other nail changes look similar; confirming the diagnosis is particularly important before a long course of tablets.

  • White, yellow, brown or sometimes greenish discolouration starting at the edge or surface of the nail.
  • Thickening, crumbling, splitting or separation of the nail from the nail bed.
  • Keep feet clean and dry, dry between the toes and change socks daily.
  • Wear roomy, breathable shoes and let them dry fully before wearing them again.
  • Make an appointment if the diagnosis is uncertain, several nails are affected or you are considering tablets.
  • For urgent GP care outside normal opening hours, call HAP 9252. Call Ambulance 912 only for an immediately life-threatening situation.

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A
Athlete's footAthlete's foot is a superficial dermatophyte infection, usually between the toes or on the sole and edges of the foot. Scaling, cracks and itching often respond to a topical antifungal and keeping the skin dry, but eczema and bacterial infections can look similar. A warm foot with rapidly spreading redness, pus, fever or a wound in someone with diabetes needs prompt assessment.
I
Inflamed nail foldWith an inflamed nail fold, the skin beside a fingernail or toenail is red, swollen and painful. A small wound can cause an acute bacterial infection; prolonged moisture and irritation more often cause chronic inflammation. Pus or spreading inflammation needs assessment.
H
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