The Wood’s lamp examination is simply ultraviolet light used to show fluorescence, as in this photograph. The pink signifies the presence of bacteria causing erythrasma. A Wood’s lamp can show subtle skin pigment differences that would otherwise be very difficult to see in normal lighting. A Wood's lamp, as shown here, is used in a dark room and emits UVA light.
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Wood's Lamp Examination 

Picture of Wood's Lamp Examination: The Wood’s lamp examination is simply ultraviolet light used to show fluorescence, as in this photograph. The pink signifies the presence of bacteria causing erythrasma. Divider line
The Wood’s lamp examination is simply ultraviolet light used to show fluorescence, as in this photograph. The pink signifies the presence of bacteria causing erythrasma.
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Following the Procedure / Aftercare
A physician may decide to treat a skin condition supported by the results of the Wood's lamp examination or perform additional tests to arrive at the correct diagnosis.

Following Wood's lamp examination, no aftercare is recommended specific to the examination itself. Depending on the results of the examination, however, the physician may recommend treatment of a skin disorder.
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Last Modified: 22 Dec 2008
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