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Wood's Light Examination

A Wood's light examination is done to determine if a skin condition is caused by a fungal infection. When this special light is directed toward the skin, certain types of fungi cause the skin to glow or fluoresce (for example, it may look bluish green under the light).

A Wood's light can also be used with a special stain to detect eye injuries, and in sexual assault exams to detect semen on skin or clothing.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Randall D. Burr, MD - Dermatology
Current as of March 12, 2014

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.