Does Dog Saliva Really Help Heal Wounds?

There is a common belief that the gentle licks of a dog can heal wounds. Stories are circulating about how a dog's saliva can aid in the healing process. However, the reality is more complex and involves both positive and negative aspects.

A Personal Anecdote

There is a story often shared by many families about how a dog's saliva can help heal wounds. I remember my father having a persistent case of psoriasis on the side of his foot and ankle in the 1950s. The condition was quite uncomfortable, and he had to keep it wrapped to prevent scratching. When we adopted our dog, Teddy, each night after unwrapping his foot, my father would let Teddy gently lick the wound. What was initially surprising became a routine that, after a few months, led to the complete healing of the wound. My father never experienced any issues after that. This anecdote suggests that there might be something beneficial in a dog's saliva, but it's important to understand the full picture.

The Science Behind

Some enthusiasts argue that there might be a scientific reason for this folklore. Dog saliva does contain certain ingredients that could potentially aid in wound healing. Histatins found in dog saliva are known to play a role in the healing process. Additionally, nerve growth factor (NGF) present in a dog's saliva can promote wound healing and tissue regeneration.

The act of licking a wound by a dog can help remove debris and promote a cleaner environment for healing. However, it is crucial to recognize that a dog's mouth is not sterile. It contains a variety of bacteria, including Pasteurella, which can lead to infections. In some cases, these infections have resulted in severe complications, such as amputations.

The Risks Involved

The belief that a dog's saliva can heal wounds is often met with skepticism among dermatologists and medical professionals. Dog mouths are not clean environments and are home to numerous bacteria. Introducing a wound to such a source can lead to harmful bacterial infections. Moreover, a dog's saliva is designed for their digestive and immune systems and may not be suitable for human wounds.

It is essential to clean a wound thoroughly after it has been licked, even if it has been done by a familiar pet. This practice can help to prevent any potential infections from the bacteria present in a dog's saliva.

Conclusion

While there is anecdotal evidence suggesting that a dog's saliva can aid in wound healing, the reality is more nuanced. The presence of beneficial substances like histatins and NGF, combined with the potential for contamination, makes it a risky choice. It is always best to seek medical advice if you have a wound and avoid intentionally exposing it to a dog's saliva.