What feature indicates healthy skin when viewed directly under a Wood's lamp?

Translucent white is an indication of healthy skin when viewed under a Wood's lamp. This is because healthy skin typically reflects light in this way, indicating a well-balanced moisture level and the presence of healthy skin cells. The translucent quality suggests that the skin is adequately hydrated without any visible issues like excessive dryness, acne, or other skin conditions that can lead to discoloration or texture changes.

In contrast, the other choices can indicate various skin concerns. Bright blue may suggest the presence of certain bacterial infections, while light pink could denote inflammation or irritation. Even yellow may indicate the presence of skin conditions like jaundice or other issues affecting the skin’s health. Thus, the translucence of healthy skin seen under a Wood's lamp is a clear marker of its vitality and proper function.