Read condition-specific symptoms and clinical context for Staphylococcus aureus. Often carried without harm; infections can become serious.
S. aureus is commonly carried on human skin and in the nose without causing harm. It can also cause skin infections and invasive disease. MRSA is a resistant subset of S. aureus; this species entry does not imply that every strain is MRSA.
This preview lists skin appearances. Invasive staph infections have different symptoms and need clinical assessment.
Possible symptoms: Pimple-like skin lesions; Boils.
A skin appearance cannot identify S. aureus or antibiotic resistance. Clinical assessment is needed.
S. aureus can be carried on the skin or in the nose without causing harm.
Carriage alone is not assigned the symptoms of a skin or invasive infection.
New symptoms or concerns need clinical context and assessment.
Source check: 2026-09-19. Educational content; independent scientific review remains pending.