Tinea versicolor, also known as pityriasis versicolor, is a common fungal infection caused by the yeast Malassezia, which is normally found on the skin. This condition leads to discolored patches on the skin, often appearing on the trunk and shoulders, which may be lighter or darker than the surrounding skin. It is more noticeable in warm, humid climates and can be exacerbated by sweating. Tinea versicolor is generally not contagious and can be treated effectively with topical antifungal medicat