fungal infection toe

Onychomycosis

Definition 

 

Fungal infection of the nail

 

Epidemiology

 

Toenail affected 4x more common than fingernail

Prevalence has increased x 4 in last 2 decades

 

Aetiology

 

Dermatophytes most common cause

 

99% T rubrum & T mentagrophytes

- destroy nail by chemical or enzymatic process

 

Pathogenesis

 

First