|Description:||Under a magnification of 475X, this photomicrograph of a single in vitro hair shaft, reveals perforations cut in cross-section, which were caused by the dermatophytic fungus Trichophyton mentagrophytes.|
Dermatophytes are fungi that cause skin, hair, and nail infections. Infections caused by these fungi are also sometimes known as "ringworm" or "tinea." Despite the name "ringworm," this infection is not caused by a worm, but by a type of fungus called a dermatophyte. Dermatophytes can live on moist areas of the skin, on environmental surfaces, and on household items such as clothing, towels, and bedding.