Growling is a means of communication to other canines as well as humans. Many dogs growl while playing and in other, non-aggressive contexts. However, canines will often growl when they are uncomfortable or frightened. This is essentially saying, “I am uncomfortable or frightened, get away from me!” As a human, we often do not want our dog to growl and sometimes punish this behavior. If we inhibit their means of communication, we may then not know when they are uncomfortable. This could result in their skipping the growl and going right to being aggressive, even biting. Rather than removing the growling, remove what is making your dog growl. Perhaps then you can find a way to make that thing/person less intimidating so you canine companion will no longer be afraid of it.