How to treat a cat scratch injury

Nov 24, 2025 Source: Cainiu Health
Dr. Liu Wenmin
Introduction
After being scratched by a cat, prompt and proper medical care can reduce health risks. Key measures include immediately rinsing and disinfecting the wound, performing daily wound care, receiving timely vaccinations, closely monitoring changes in the wound, and adjusting daily diet and sleep habits. To prevent infection or complications, regardless of the severity of the wound, it is essential to keep the wound clean and dry, avoiding contact with water or contaminants.

After being scratched by a cat, timely and proper medical care can reduce health risks. Key measures include immediately cleaning and disinfecting the wound, maintaining daily wound care, receiving necessary vaccinations promptly, closely monitoring changes in the wound, and adjusting daily diet and routine. Detailed recommendations are as follows:

1. Clean and disinfect the wound: Immediately after the scratch, clean the wound thoroughly. Alternate rinsing with running water and soap for at least 15 minutes to ensure any residual saliva is flushed out. After rinsing, gently dry the wound with clean gauze, then apply iodine or medical alcohol to disinfect the surface and kill bacteria and viruses.

2. Proper wound care: Keep the disinfected wound clean and dry, avoiding contact with water or contaminants. If the wound is small, it can be left exposed to air. For larger wounds or those prone to friction, cover gently with sterile gauze and change the dressing daily to prevent infection.

3. Timely vaccination: Regardless of the cat's health status, it is recommended to seek medical attention promptly and receive the rabies vaccine as advised by a healthcare provider. If the cat has unknown health issues or has been in contact with wild animals, a tetanus vaccine may also be needed depending on the severity of the wound, to reduce the risk of infection.

4. Monitor wound changes: Observe the wound daily for signs of healing. Watch for abnormalities such as redness, increased pain, discharge, or pus. If the skin around the wound becomes warmer than usual or develops hard lumps, seek further medical treatment promptly.

5. Adjust diet and daily routine: During recovery, maintain a light diet rich in vitamins and protein—such as vegetables, fruits, and lean meats—to support wound healing. Ensure adequate sleep, avoid staying up late or overexertion, and strengthen your immune system.

To prevent infection or complications, keep the wound clean and dry regardless of its severity, and avoid getting it wet or contaminated. Monitor the wound closely and seek medical help immediately if any adverse symptoms develop.