Tinea versicolor — also called pityriasis (pit-uh-RYE-uh-sis) versicolor — is caused by a type of yeast that normally lives on the skin. When the environment it lives in gets warm and moist, it can ...
It's also called tinea versicolor. Pityriasis versicolor (pronounced: pit-uh-RYE-uh-sis VUR-si-kul-ur) skin patches usually are on the torso and upper arms. But they can also appear on the face and ...