Why Dogs Growl and How to Address Your Pup’s Vocalizations

Hearing your dog growl can be scary. We love our four-legged best friends as part of the family, but sometimes their communication can be confusing. What does the growl mean — is it a sign of aggression? Did we do something wrong as owners? Is it going to lead to a bite?

We’re here to help! Here’s a look at why your dog might growl in certain situations and how you can keep everyone safe and comfortable.

First things first: Growling is normal canine communication

It’s perfectly normal for your dog to growl on occasion depending on the situation and context at hand. A growl often means your companion is feeling uncomfortable and is trying to let you know right away — before escalating to more extreme aggression displays like lunging, snapping, or actually biting.

Growling can mean multiple different things

Play growling

Many dogs growl during play when they’re enjoying the game, either while wrestling with another dog or tugging with their owner. A big part of canine play is ritualized expressions of behaviors like running, chasing, barking, and nipping. Play is how puppies learn valuable skills like body awareness and bite inhibition, and it’s how wild wolves start to develop their hunting abilities.

If your dog growls during a play context with loose body language — and if the game seems reciprocal (all dogs or humans involved are taking turns and having a good time) there’s no cause for concern. These playful growls do not mean your dog is aggressive. They don’t mean your pet is dangerous. They just mean your companion is a canine having fun! Their vocalizations are a sign of happiness.

(You can read more about your dog’s body language in this article. If you ever can’t tell if what you’re watching is appropriate play or not, it’s a good idea to call your dog away to be on the safe side and consider getting in touch with a professional trainer who can help you interpret their signals.)

Growling out of pain

This is especially likely if your dog never used to growl but has started doing it all of a sudden, or if the growls most often occur when your dog moves or is touched in a certain way. Think about a human with a sore muscle saying “ow!” when their partner bumps into them. Your dog might be expressing a similar thing.

If you suspect your dog is growling out of pain, get them in for a full veterinary check as soon as you can. No training plan will be effective if your pet is struggling with their health.

Resource guarding

Resource guarding growling typically occurs in the following contexts:

• When your dog has a high value item (like a favorite chew or bone) or is resting in a favorite spot (like a couch or chair)


• And another person or dog approaches them


• And they’re afraid that other person or dog is going to take away what they have

You can learn more about resource guarding in the context of food aggression in this piece.

Defensive growling

If your dog growls when other dogs or people approach them quickly, when something startling happens in the environment (like a person on a bicycle riding past without warning), or in other situations that make them nervous, there’s a good chance they’re reacting defensively — even though the vocal communication sounds like an aggressive growl — and are trying to ask for more personal space.

You can learn more about fear aggression in this article. We also have a whole blog article about various types of reactivity in dogs here, depending on your pet's behavior and the contexts it shows up in!

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What to do about your dog’s growling

1. Identify the root cause


2. Treat those underlying issues

Once everyone has calmed down, you can start thinking about how to prevent the growling (and the discomfort at the root of it) from occurring again.

Figure out what’s causing your dog to growl

Change your environment or the situations you put your dog in

Here are a few examples to think about:

• If your dog growls when strangers pet them without warning, consider if that’s really something they need to handle in your everyday life. Do they need to be comfortable being touched 100 percent of the time? Or could you stop people from approaching before you get the chance to gauge your dog’s body language to see if they’re excited about a greeting?


• Similarly, if your dog growls when they’re handled in a certain way, they might just be telling you they don’t like that particular type of touching. This is common in families who have young children. It’s perfectly reasonable for a dog to express discomfort when their ears or tail are pulled! It’s important to teach both dogs and kids appropriate forms of communication and boundaries.


• Some dogs have natural territorial instincts. It’s important to manage them carefully — you need to be able to maintain control when strangers arrive on your property, of course — but it’s not always realistic to expect our pets to completely give up their innate responses. If your dog grumbles a little when a new person knocks on your door, consider how much vocalization you’re comfortable with and what might be a fair compromise.

• Walking in a different environment or at a less busy time of day


• Covering your windows with blinds or film so they can’t see outside


• Playing a white noise machine


• And more. You can read a deep dive into management in our guide to reactivity training article.

Develop a long-term behavioral modification plan

This might involve:

• Desensitization


• Counterconditioning


• Overall confidence building


• Increased enrichment


• And more

What not to do when your dog growls

• If you punish your dog for growling, they will stop showing the growling behavior — but their underlying emotions won’t change. This means that next time they feel uncomfortable, they might skip growling and go straight to escalating on the ladder of aggression.


• If you create an even more negative association with the things that make your dog growl by punishing them, you risk piling onto their existing difficult emotions and ultimately making situations harder to train through. Think about it: If every time your dog sees another dog they feel scared and growl, and then you get mad at them, now they think that other dogs are scary to start with but also that they make their owner upset too. That’s not a cycle you want to be in! You want triggers to eventually be associated with happiness.

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When in doubt, contact a professional trainer

If your dog growls often, though — or if you’re struggling to identify the cause of their vocalizations — a professional force free trainer can help. They’ll get to know your individual dog, help you understand what situations trigger their negative emotions, and equip you with resources to improve everyone’s comfort in the long run.

Trainer Review of this Article

This is the trainer that reviewed this article:

Erica Marshall CPDT-ka, CDBC
Owner/Trainer of Wicked Good Dog Training in Christiana TN
Author of "New Puppy, Now What?"
www.wickedgooddogtraining.com

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