Symptomatic Tinea Pedis caused by Trichophyton mentagrophytes

Symptomatic Tinea Pedis Caused by Trichophyton mentagrophytes

Tinea pedis is a fungal infection of the feet, commonly caused by species of the genus Trichophyton, which is the main dermatophyte responsible for athlete's foot. One specific species, Trichophyton mentagrophytes, is one of the most common agents of tinea pedis. It is important to understand the clinical features, causative agent, and treatment of tinea pedis caused by Trichophyton mentagrophytes.

Clinical Features

The most common presentation of tinea pedis caused by Trichophyton mentagrophytes is that of ‘interdigital’ tinea pedis, which is characterised by small, itchy, and/or scaly lesions between the toes. Cracks in the skin may also be present which are often painful. Lesions may spread to the soles, sides of the feet, and/or to the toenails. Lesions can sometimes extend to the arms or legs in more severe cases.

Causal Agent

Trichophyton mentagrophytes is an anthropophilic dermatophyte fungus that is the most common cause of tinea pedis. It is found in warm and moist environments such as locker rooms, swimming pools, and communal showers, where it is passed from person to person in a process known as autoinoculation. It can also be spread through contact with infected animals such as cats and dogs.


The most important part of treatment for tinea pedis caused by Trichophyton mentagrophytes is to prevent recurrence. Treatment should include:

  • Keeping the feet clean and dry at all times.
  • Wearing light and comfortable shoes and socks.
  • Avoiding going barefoot in public areas.
  • Using antifungal powder or lotion to keep the feet dry.
  • Using an antifungal cream or ointment to reduce the infection.
  • Oral antifungal medication, such as fluconazole or terbinafine, to treat more severe cases.

It is important to note that proper treatment and preventative measures are necessary to ensure that the infection does not recur.