A Wood's lamp examination is a diagnostic test that uses a special UV light to help healthcare providers, especially dermatologists, identify various skin, hair, and scalp conditions. The UV light causes certain substances to fluoresce in different colors, revealing details not visible under normal light.
Before the procedure, it's important to avoid washing the area and applying topical products like lotions or makeup, as these can interfere with the results.
During the examination, you will be in a dark room. The provider will hold the Wood's lamp a few inches from the skin and observe for any fluorescence or color changes. The procedure is quick and painless, usually taking only a few minutes.
After the test, there is no recovery time needed, and you can return to your normal activities immediately. The results are typically discussed right away and are used along with other information to help diagnose your condition.