Understanding it
What causes fungal nail infections?
Fungal nail infection — onychomycosis — affects roughly one in ten UK adults and up to half of people over 70. It is caused by microscopic fungi that feed on keratin, the protein your nails are made of.
The organisms responsible
Most cases are caused by dermatophytes, the same family of fungi behind athlete's foot. Yeasts such as Candida and non-dermatophyte moulds account for a smaller share, more often in fingernails.
How infection takes hold
Fungi need warmth, moisture and a way in. A small crack, a knock to the nail or damage from tight footwear gives spores a route under the nail plate.
- Untreated athlete's foot spreading to the nail
- Communal showers, pools and changing rooms
- Occlusive footwear worn for long periods
- Nail trauma from running or steel-toe boots
- Shared clippers or unsterilised salon tools
Who is most at risk
Risk rises with age as nails grow more slowly. Diabetes, psoriasis, peripheral vascular disease and any condition that suppresses immunity all increase susceptibility.
Early signs
A white or yellow spot under the tip of the nail is often first. Left alone the nail thickens, discolours to yellow-brown, becomes brittle at the edge and may lift away from the nail bed.
Why it will not clear on its own
The fungus lives inside the nail plate, where topical products cannot easily reach. Removing the infected nail material is what makes treatment effective — which is the principle the Canespro set is built on.
Frequently asked questions
Is fungal nail infection contagious?
Yes, mildly. It can spread between your own nails and to other people through shared towels, footwear and damp floors.
Can nail varnish cause it?
Varnish does not cause infection, but leaving it on for long periods traps moisture and can hide early signs.
References
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Medical disclaimer. This article is general information written for a UK audience. It is not medical advice and does not replace assessment by a GP, pharmacist or podiatrist. Always read the patient information leaflet supplied with any product before use.