What causes nail fungus?

Nails with damage to the nail plate and the seal at either end of the nail are most at risk from fungal nail infection. A skin infection known as athletes foot, usually present between, the toes, it then invades the nail and causes the problem.

Fungi thrive upon the conditions in the shoe and 30% of people complaining of fungal nail infection also suffer from athletes foot infection.

The hot sweaty environment found in the shoe are ideal for the fungi to grow and to spread. Fungal infections are caused primarily by dermatophytes, candida and various yeasts and moulds found in these conditions.

Serious medical conditions such as poor circulation and diabetes can lead to worsening conditions and occasionally a secondary bacterial infection. Use of common towels, walking barefoot on contaminated surfaces and the use of non-sterile equipment for toenail cutting and filing can cause the infection.

Factors that increase the risk of infection are;

• Nail damage
• Having poor general health
• Smoking
• Regular use of shared washing/changing facilities
• Trauma to the nail, for example poorly fitting shoes or running.

It has been estimated that nearly 10% of the population suffer from fungal nail infection and over half of those over 70 are affected.