White matter and other changes around the toenails and fingernails can occur with psoriasis or nail fungus. However, fungal infections are contagious, and psoriasis is not. The causes and ...

Some physicians may see nail lichen planus or nail psoriasis and assume incorrectly that it's a fungus, but dermatophyte infection is extremely rare in the fingernails," she emphasized.

Physicians must be careful when diagnosing fungal infections of the nail because several other conditions can result in ...