Honey-colored crusts are characteristic of impetigo most commonly caused by which organism?

• A. Streptococcus pyogenes
• B. Staphylococcus aureus
• C. Pseudomonas aeruginosa
• D. Clostridium difficile

Answer: (B)

Honey-colored crusts in impetigo point to a superficial skin infection where the most common culprit is Staphylococcus aureus. The typical course is vesicles or pustules that rupture, leaving thick, amber or golden crusts that give impetigo its classic look. Staph aureus is the leading cause in many community settings, though Streptococcus pyogenes can also cause impetigo. The other organisms listed aren’t associated with this skin finding: Pseudomonas is linked to hot tub or burn infections, and Clostridium difficile is an intestinal pathogen.