03/16/2026
Surgical irrigation is an intraoperative technique used to rinse the surgical wound before closure to remove debris, tissue fragments, and microorganisms that may increase infection risk. This process helps reduce microbial contamination and supports the prevention of surgical site infections (SSIs), one of the most common healthcare-associated complications after surgery. 
Common irrigation solutions include normal saline, antiseptic agents (such as povidone-iodine), and occasionally antibiotic solutions. Studies suggest that antiseptic or antibiotic irrigation may reduce SSI rates compared with saline alone or no irrigation, although the overall evidence remains mixed and further research is needed to determine the most effective approach. 
Despite widespread use—by the majority of surgeons—guidelines from organizations such as the CDC and WHO note that the benefits and risks of antimicrobial irrigation are still being evaluated, and practices vary depending on the surgical procedure and clinical context. 
Key takeaway: Surgical irrigation remains a widely used strategy to help reduce microbial burden in the surgical field and potentially lower the risk of surgical site infections, but optimal solutions and protocols continue to be studied.
Infection preventionists are often asked to advise on surgical irrigation practices as they relate to the reduction of SSI, yet practice varies across organizations and clinical settings. The APIC Center for Research, Practice, and Innovation (CRPI) has released a new evidence-based resource, An Ove...