Final answer:
Purple under a Woods Lamp typically signifies the presence of certain substances or bacteria, aiding in the diagnosis of skin conditions.
Step-by-step explanation:
Under a Woods Lamp, the color purple usually represents a fluorescence that indicates the presence of certain substances or bacteria on the skin.
This diagnostic tool is used in the field of dermatology to detect and diagnose skin conditions, such as bacterial or fungal infections, and skin pigment disorders.
For example, the bacterium Pseudomonas aeruginosa can produce a purple hue when observed under a Woods Lamp. By examining the fluorescence colors, medical professionals can obtain valuable information about the patient’s skin condition, aiding in accurate diagnosis and treatment.