Staphylococcus aureus (MSSA)
S. aureus is the most common pathogen
Staphylococcus aureus (MRSA)
Beta-hemolytic Streptococcus (Groups A&B)
Gram negatives more likely if recent antibiotic use or chronic ulcer
Anaerobes
Particularly in deeper wounds, more chronic, or accompanied by necrosis or ischemia.
Pseudomonas aeruginosa