AORN’s New Surgical Attire Guidelines: Strengthening Infection Prevention

The 2025 AORN Guideline for Surgical Attire establishes that perioperative clothing and personal accessories are critical vectors for pathogen transmission, necessitating strict, standardized infection prevention protocols. According to the Association of periOperative Registered Nurses (AORN), maintaining sterile operating room environments requires managing staff attire—from hospital-laundered scrubs to the sanitation of personal electronic devices—as a core component of surgical site infection (SSI) reduction.

Data-Driven Risks of Perioperative Contamination

Research confirms that health care uniforms are frequent reservoirs for pathogenic microorganisms. A 2019 study published in Clinical Nursing Research analyzed 305 uniform cultures from 115 staff members, identifying 24 distinct microorganisms. The data showed that 85% of physician uniforms and 79% of nurse uniforms tested positive for bacterial contamination. Notably, Staphylococcus epidermidis was found in over 60% of these samples.

The risk profile shifts significantly based on laundering practices. Evidence from emergency department environments indicates that personally owned, home-laundered scrubs consistently harbor higher bacterial loads than hospital-issued, professionally laundered apparel. With the Centers for Disease Control and Prevention (CDC) reporting that approximately 1 in 31 hospital patients suffers from a health care-associated infection on any given day, these findings underscore why institutional control over laundry is a primary patient safety intervention.

Did you know?
Surgical site infections following abdominal hysterectomy procedures rose by 8% between 2022 and 2023. Strengthening attire protocols is a direct, evidence-based method for clinical teams to combat this upward trend.

Mandatory Protocols for Contaminated Attire

The 2025 AORN guidelines remove ambiguity regarding the handling of soiled garments. Any attire contaminated with blood, body fluids, or infectious materials must be removed immediately at the site of use. The guideline explicitly prohibits rinsing or sorting contaminated items in the perioperative area. Instead, staff must bag or containerize these items at the point of care for industrial laundering, preventing the migration of pathogens into hallways, changing areas, or the community.

Containment of Hair, Footwear, and Personal Tech

Infection prevention now extends to the smallest details of staff appearance. The 2025 standards require that all scalp and facial hair be fully contained in restricted and semirestricted zones. Because facial hair of varying lengths sheds microorganisms—including drug-resistant species—at high rates, proper coverage is non-negotiable.

Regarding footwear, OSHA and ASTM standards dictate the requirements for fluid-resistant protection. In scenarios where gross contamination is anticipated, staff must utilize fluid-resistant shoe covers or boots, which must be discarded immediately upon exiting the high-risk zone, followed by mandatory hand hygiene.

Pro Tip: Do not overlook “silent” vectors. Personal devices, including cell phones, stethoscopes, identification badges, and backpacks, are frequent carriers of multidrug-resistant organisms. Establish a routine for disinfecting these items with facility-approved agents before and after patient contact.

Future Trends: Attire as a Cultural Safeguard

The evolution of surgical attire is moving toward a culture of “attire as safety,” where dress code is secondary to biological containment. Success depends on leadership modeling these behaviors, ensuring that infection preventionists and perioperative nurses collaborate to remove barriers like inadequate supply access or complex workflows.

Frequently Asked Questions

Why can’t I wash my own scrubs at home?

According to the 2025 AORN guidelines, home laundering is inconsistent and carries a higher risk of bacterial contamination compared to hospital-managed, industrial laundering processes designed to neutralize pathogens.

AORN's Updated Surgical Attire Guidelines: Enhancing Patient Safety in the OR

Do I need to cover my beard in the operating room?

Yes. The guidelines mandate that all facial hair be fully covered in semirestricted and restricted areas because facial hair is a known shedder of microorganisms, including drug-resistant bacteria.

Are cell phones considered part of the sterile protocol?

While often overlooked, personal devices are high-risk surfaces. The 2025 guidelines emphasize that cell phones, tablets, and badges must be cleaned regularly to prevent them from acting as transmission vehicles for multidrug-resistant organisms.


Are your facility’s current practices aligned with the 2025 AORN guidelines? Share your experiences with implementing these new standards in the comments below or subscribe to our newsletter for the latest updates in surgical safety.

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