Toenail fungus is a widespread fungal infection that affects your toenails. Less commonly, nail fungus can infect your fingernails. Toenail fungus happens when fungi get between your toenail and your toenail bed (the tissue right underneath your toenail). This usually happens through a crack or cut in your toe. When a dermatophyte causes toenail fungus, the condition is called tinea ... https://healthcheckbox.com/fr/dermatology/nail-fungus-treatment/