Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/15/2025

Management of Dog Bite Wounds

Initial Management

  • Dog bites should be cleaned immediately with copious irrigation using water or normal saline solution to significantly decrease the risk of bacterial infection 1

Suturing Decision Algorithm

Facial Wounds

  • Facial wounds can be closed primarily after copious irrigation, careful debridement, and administration of preventive antibiotics 1

Non-Facial Wounds

  • Primary closure of dog bite wounds in areas other than the face is generally not recommended 1
  • For non-facial wounds, consider approximating edges without complete closure 1
  • For non-facial wounds, especially hand wounds, consider leaving wounds open due to a higher risk of infection if closed 1

Antibiotic Prophylaxis

  • Early preventive antimicrobial therapy (3-5 days) is recommended for immunocompromised patients, asplenic patients, patients with advanced liver disease, wounds with pre-existing or resulting edema, and moderate to severe lesions, especially on the hand or face 1
  • Amoxicillin-clavulanate is the first-line prophylactic antibiotic as it is active against both aerobic and anaerobic bacteria commonly found in dog bite wounds 1

Additional Considerations

  • Tetanus prophylaxis should be administered to patients who have not been vaccinated in the last 10 years (or 5 years for dirty wounds) 1
  • The Tdap vaccine is preferred over the Td vaccine if the former has not been previously administered 1
  • Rabies prophylaxis may be necessary - consult local health authorities to determine if vaccination should be initiated 1
  • A healthy dog that bites a person should be confined and observed daily for 10 days; any illness should be reported immediately to the local health department 2, 3

Special Considerations

  • Hand wounds have a particularly high risk of infection and should generally not be sutured 1