Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/5/2025

Wound Cleansing with Povidone-Iodine

General Principles for Wound Cleansing

  • The American Heart Association recommends that superficial wounds and abrasions should be thoroughly irrigated until there is no obvious debris or foreign matter in the wound 1
  • Running tap water or sterile saline solutions are preferred for most wound irrigation rather than antiseptic agents like povidone-iodine, as recommended by the American Heart Association 1, 2
  • Clean superficial wounds and abrasions should be covered with an occlusive dressing to promote wound healing, according to the American Heart Association 1
  • Infection rates of wounds irrigated with tap water are similar to infection rates of wounds irrigated with sterile saline solution, as found by the American Heart Association 1

Specific Indications for Povidone-Iodine Use

  • Heavily contaminated wounds may be considered for povidone-iodine use, especially if there is significant contamination with soil or other foreign material, as suggested by the World Journal of Emergency Surgery 3, 4
  • In some surgical settings, aqueous povidone-iodine solution may be considered for incisional wound irrigation in clean and clean-contaminated wounds, though evidence is of low certainty, according to the World Journal of Emergency Surgery 4, 5

Wound Cleansing Algorithm

  • For wounds contaminated with human or animal saliva, medical evaluation should be sought as soon as possible, as recommended by the American Heart Association 1
  • Heavily contaminated wounds may consider povidone-iodine, especially if high risk of infection, as suggested by the World Journal of Emergency Surgery 4, 5

Effectiveness and Evidence Quality

  • Several studies have not demonstrated a benefit of wound cleansing with povidone-iodine in addition to irrigation, as found by the American Heart Association 1
  • There is insufficient data to determine the definitive role of saline or povidone irrigation of incisional wounds before closure to prevent surgical site infection, with a Grade of Recommendation 2B, according to the World Journal of Emergency Surgery 3, 5