Why do dogs shake shutter after licking human wounds?

Dogs shaking their heads after licking human wounds is likely due to a few factors, not a deliberate attempt to "clean" the wound:

* Taste: Wounds often have a salty or metallic taste that dogs find unpleasant. They may shake their heads to get rid of that taste.

* Sensory Overload: The feeling of blood or other wound fluids on their tongue can be overwhelming or uncomfortable for some dogs. Shaking their head is a way to try and remove that sensation.

* Reflex: The act of licking itself could trigger a reflexive shaking motion, similar to how humans might shake their head after getting something in their hair.

It's important to remember:

* Dogs are not trained medical professionals. Their saliva does not have antibacterial properties that can heal wounds. In fact, licking can introduce bacteria into the wound and increase the risk of infection.

* Encourage your dog to avoid licking wounds. Keep them away from the area and redirect their attention with toys or treats.

* Consult a veterinarian. If you have an open wound, seek professional medical advice to prevent infection and ensure proper healing.

While your dog's intentions may be good, it's best to keep them from licking your wounds to prevent further complications.