Tinea Versicolor
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Tinea versicolor is a common skin condition caused by an overgrowth of yeast on the skin's surface. The yeast normally live in the pores of the skin and thrives in oily areas such as the neck, upper chest, and back. An overgrowth results in a fungal infection that causes uneven skin color, scaling, and sometimes itch.
WHAT TINEA VERSICOLOR LOOKS LIKE
- Small, scaly, white-to-pink or tan-to-dark spots appear, generally scattered over the upper arms, chest, and back, and sometimes on the neck and face.
- Tan-to-pink spots or very faint on light-colored skin, and light or dark spots on dark skin.
- The fungus prevents the skin from tanning normally, so as the rest of the skin tans, pale spots become more noticeable, especially on dark skin.
Tinea versicolor
CAUSES OF TINEA VERSICOLOR
Tinea versicolor usually produces few symptoms. Slight itching might intensify when a person becomes hot.
Why some people develop tinea versicolor and others do not is not entirely clear. The yeast that cause tinea versicolor is normally present in small numbers on normal skin, and the yeast can become overgrown on anyone.
- Dark- and light-skinned people are equally prone to developing tinea versicolor.
- People who have oily skin might be more susceptible than those who have naturally dry skin.
- The condition develops most commonly in teenagers and young adults.
- Children and the elderly rarely develop this condition, except in tropical climates.
- In areas that have high temperatures and humidity, tinea versicolor occurs in individuals of every age, and people in tropical regions can have these spots year round.
- Tinea versicolor also is more common in temperate climates during the summer when the temperature and humidity are high. The spots generally fade during the cooler and drier months of the year.
DIAGNOSIS
Although the light- or dark-colored spots can resemble other skin conditions, tinea versicolor can be easily recognized by a dermatologist. In most cases, a visual exam of the skin is all that is needed to make the diagnosis. To confirm the diagnosis, scale might be gently scraped from the skin so that it can be examined under a microscope for the presence of yeast. A special light called a Wood's lamp also might be used. The lamp is held four or five inches from the affected skin. If tinea versicolor is present on the skin, the affected skin will appear yellowish green in color.
Tinea versicolor
TREATMENT OF TINEA VERSICOLOR
Each patient is treated by a dermatologist according to the severity and location of the disease, the climate, and the desire of the patient. Treatments might include:
- Topical (shampoos, soaps, creams, or lotions) medications that might contain selenium sulfide, ketoconazole, or pyrithione zinc.
- Oral medications, including ketoconazole, remembering that due to possible side effects, or interactions with other medications, the use of prescription medicines should be supervised by your dermatologist
- Medicated cleansers, used once or twice a month, especially during warm, humid months of the year, might be recommended because tinea versicolor can recur.
It is important to remember that the yeast is easy to kill, but it can take weeks or months for the skin to regain its normal color.
A dermatologist is a physician who specializes in treating the medical, surgical, and cosmetic conditions of the skin, hair, and nails. To learn more about tinea versicolor, visit www.aad.org, or call toll-free (888) 462-DERM (3376) to find a dermatologist in your area.
AAD Web site: www.aad.org
Toll-free: (888) 462-DERM (3376)
Images used with permission of the American Academy of Dermatology
National Library of Dermatologic Teaching Slides
© 2007 American Academy of Dermatology
Revised 1991, 1993, 1995, 1999, 2001, 2003, 2005
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