If his growl doesn't mean a bite is imminent, stop what you're doing but stay where you are. Wait until he relaxes, then move away, so you're rewarding the relaxed behavior rather than the growl.
You cannot punish an emotion out of a dog (or a human). Growling is just your dog's way of trying to tell you something important, and you should listen and genuinely thank your dog for the honest feedback. Growling is your dog's way of begging you to stop what you're doing and move away.
Dogs will give a warning growl in situations involving things like resource guarding, stranger danger, feeling cornered, or feeling stressed. Dogs use these warning growls to communicate to you or another animal to “back off” because they are uncomfortable.
Don't Punish Growling
Hopefully, you now recognize that you should never correct growling. It's either benign or a symptom of stress in your dog. If you punish your dog for growling, you will only inhibit growling. You won't have done anything to address the underlying issue.
The most common reasons dogs growl are fear, possession aggression, territoriality, and pain. Some dogs also growl when playing. Play growling is often seen when two dogs are having a safe, healthy play session. In this case, the growling does not necessarily indicate aggression.
There's usually nothing to worry about when your dog is growling during play. However, it is important to monitor them to make sure that it doesn't lead to aggression caused by too much energy, especially with puppies.
Lastly, never punish your dog for aggression. Dogs don't understand punishment and thus are more likely to act out or act more aggressive when punishment is used. Instead, the best way to train away aggressive behavior is to reward good behavior.
Dogs Growl to Communicate
Growling seems like an aggressive act. After all, it usually precedes a bite. But, at its core, growling is about communication. Dogs growl to indicate they're unhappy, uncomfortable, or even fearful about a particular situation.
Straight off the bat you should be correcting your dog's growling and/or snapping with a firm “no” at the onset of the behavior. When he stops growling, reward him with a “good boy”, or in the beginning, a treat if it's handy at the exact moment of training so that he knows what he is being rewarded for.
Growling and snapping are probably the most obvious signs that a dog is about to bite. Dogs growl or snap to let you know they are unhappy or uncomfortable. If a dog growls or snaps at you when you approach them, it's time to give them some space. Growling and snapping can be helpful, too.
Guarding people, places and things is normal for dogs (and for most people!) and growling is a dog's way of giving a warning. The aggressive display may stop with a growl (especially if the perceived threat goes away) or it may be a precursor to snapping and biting.
Don't push your dog over his tolerance threshold. Whatever you're doing, just stop. If your dog's growl threshold is near his bite threshold – that is, if there's not much time between his growl and his bite, get safe. If his growl doesn't mean a bite is imminent, stop what you're doing but stay where you are.
The safest and most effective way to treat an aggression problem is to implement behavior modification under the guidance of a qualified professional. Modifying a dog's behavior involves rewarding her for good behavior—so you'll likely be more successful if your dog enjoys praise, treats and toys.
Dogs that are willing to use aggression to change the outcome of a situation are rarely cured but often can be controlled. Improvement may occur by having predictable interactions, avoidance of aggression provoking stimuli, a good daily routine of exercise, play and social interaction.
First, stop your dog in the act of whatever he's doing, then give him a different, pet parent-approved option. For example, if you walk into a room and notice him chewing your shoes or hairbrush, swiftly tell him "No!" and take the item out of his mouth. Once your dog is calm, present him with an actual chew toy.
Have him move out of your way a few times a day. If he is lying down in a hallway, walk through him by gently shuffling your feet until he gets up and moves. The alpha never walks around his littermates. Don't let your dog treat you like a sibling, be the parent.
When You Shouldn't Ignore Your Dog's Bad Behavior. There are some behaviors you don't want to ignore, such as puppy nipping or pulling on leash. Any behavior that feels good to your dog, is naturally calming (such as licking or chewing), or is fun to do is not likely to go away when ignored.
Science proves that dogs understand the emotional aspect associated with the insult based on tone, and body language, not necessarily the insult itself. As much as we'd all love to have a conversation with our dog, (and have them understand that by “no peeing”, we mean no peeing) that's just not the case.
Yelling encourages bad behavior
That shows your dog she has no incentive to come back. Instead, call your dog and when she comes back, praise her and give her a treat. If all you do is yell, why would your dog want to please you?
Start by making sure your dog can follow a command with no distractions. Then, work on the command with people in the environment talking, eating, engaging with each other. Then, work on the command out in the yard and start with minimal distractions and work up to more significant distractions.