Staphylococcus aureus, which can appear in various places of life, such as water, air, excreta, etc., belongs to the most common Gram-positive cocci and is the most common causative agent of infectious and toxigenic diseases. Infectious diseases: 1, local infections: such as skin surface boils and carbuncles, folliculitis, nail fungus, cellulitis and purulent wounds may be caused by Staphylococcus aureus infection; 2, visceral infections: Staphylococcus aureus is also the causative agent of bronchitis, pneumonia, pseudomembranous enteritis, endocarditis, septic thoracic osteomyelitis, meningitis, otitis media and other diseases; 3, systemic infections: Staphylococcus aureus also may cause sepsis, septicemia, toxemia and other systemic infectious diseases. Second, toxin diseases: 1, food poisoning: when Staphylococcus aureus contaminated food, under certain conditions can produce a large number of enterotoxins, the body can cause food poisoning by ingesting enterotoxins, patients can occur in different degrees of acute gastroenteritis; 2, scald-like skin syndrome: also known as exfoliative dermatitis, mainly caused by Staphylococcus aureus in the skin to produce epidermal relaxation toxins; 3, toxic shock syndrome: refers to the is a disease caused by the production of toxic shock syndrome toxin-1 by Staphylococcus aureus, which stimulates T cells to produce a variety of hormones such as interleukin-1, causing dysfunction in several organs and systems in the organism.