Tinea versicolor is a common fungal infection of the skin. The fungus interferes with the normal pigmentation of the skin, resulting in small, discolored patches. These patches may be lighter or darker in color than the surrounding skin and most commonly affect the trunk and shoulders.

Tinea versicolor (TIN-ee-uh vur-si-KUL-ur) occurs most frequently in teens and young adults. Sun exposure may make tinea versicolor more apparent. Tinea versicolor, which is also called pityriasis versicolor, is not painful or contagious. But it can lead to emotional distress or self-consciousness.

Antifungal creams, lotions or shampoos can help treat tinea versicolor. But even after successful treatment, skin color may remain uneven for several weeks or months. Tinea versicolor often recurs, especially in warm, humid weather.