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What causes pityriasis versicolor?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Pityriasis versicolor is caused by a fungus called pityrosporum ovale, which is a yeast that is normally found on your skin. This yeast only becomes a problem when it grows out of control, causing pityriasis versicolor. Several factors can cause the yeast to overgrow, such as a humid climate, extreme sweating, or oily skin. Also, a weakened immune system may allow pityriasis versicolor to develop.

If you have any skin irritations or unusual symptoms, talk to your doctor or dermatologist. A medical examination is the first step in understanding your skin problems so you can get the proper diagnosis and treatment.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.