Which organism is mostly associated with infections resulting from post-surgical complications?

Staphylococcus aureus is often associated with infections resulting from post-surgical complications due to its prevalence on the skin and in the nasal cavity of humans. This organism is a common cause of surgical site infections because it can easily enter the body during surgical procedures. The ability of Staphylococcus aureus to form biofilms and its resistance to many antibiotics can complicate treatment and increase the risk of persistent infections after surgery.

The high rate of skin contact during surgical procedures further increases the likelihood of this bacterium being introduced into wounds. Given its virulence factors, such as the production of toxins and enzymes that aid in tissue invasion, Staphylococcus aureus remains a significant concern in postoperative care settings.