Picture of Tinea Versicolor

Tinea versicolor is a fungal infection that causes small patches of discolored spots on your skin. It's also called pityriasis versicolor. It results from a type of yeast that naturally lives on your skin. When the yeast grows out of control, the skin disease, which appears as a rash, is the result. The term versicolor refers to frequently changing the color of involved skin. The most common areas affected are the shoulders, back, and chest and usually doesn't produce symptoms.
Image Source: © Richard Usatine, MD
Text Source: WebMD
Text Source: WebMD