Medically reviewed by William Truswell, MD Tinea versicolor is a common skin infection caused by a fungus called Malassezia.

Certain fungal infections may result in white spots on your skin. One condition is called tinea versicolor or pityriasis versicolor which is a fungal or yeast skin rash. Pityriasis versicolor occurs ...

A circular rash isn't always ringworm. While the bullseye circle rash is typical of ringworm, a fungal infection, the cause also can be an allergic reaction, skin disorder, or other type of skin ...