Dogster is reader-supported. When you buy via links on our site, we may earn a commission at no cost to you. Learn more.

Dog Training

How to Calm an Aggressive Dog: 8 Vet-Approved Tips & Considerations

Cheryl Regan
By Cheryl Regan · Reviewed & fact-checked by Dr. Paola CuevasVet Approved
Dr. Paola Cuevas
Reviewed & Fact-Checked byDr. Paola CuevasVeterinarian
Dr. Paola Cuevas is our Senior In-House Veterinarian at Dogster and Pangolia. She has over 19 years of experience working with an array of species and loves sharing her knowledge and experience with our readers and aims to provide assistance with any issue presented by your non-human family members. She received her degree from the University of Guadalajara, Mexico.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Learn more
Updated on June 29, 2026
Share
aggressive german shepherd dog

When it comes to our cherished pets, aggressive behavior can be disconcerting and, in some cases, dangerous. When our dog’s behavior changes, it’s usually caused by an underlying issue. Aggressive behavior must be taken seriously from the start, and action must be taken immediately to prevent it from worsening and potentially becoming dangerous.

In this article, we'll share eight tips on how to calm an aggressive dog and a list of the potential underlying issues that can cause aggressive behavior in canines.

divider dog faces oct 2024

Safety First

If your dog is displaying aggressive behavior and you are in an unsafe situation, you must move yourself and others out of harm's way. It is your responsibility to ensure that your dog is under control and safe at all times.

divider dog faces oct 2024

The 8 Tips on How to Calm an Aggressive Dog

1. Do a Vet Consultation

Whether your dog has suddenly begun displaying aggressive behavior or it’s been going on for a while, it’s a good idea to consult a veterinarian. They can perform a complete examination to rule out pain and discomfort caused by wounds or injuries. A vet will also look to rule out pain due to illness, such as joint disease or neurological disorders, which can cause aggression in dogs.

A vet should be able to provide your dog with the medication and treatment that they need, but they may have to put a muzzle on or even sedate your dog and perform further testing to make a diagnosis.


2. Get Professional Help

Training a dog can be hard work—if it weren’t, professional dog trainers wouldn’t exist! Aggression can quickly escalate, so it is recommended that after visiting your veterinarian, you should consider hiring an experienced dog behaviorist.

A professional can help you understand the underlying cause of your dog’s aggression and recognize the triggers and precursors to develop a successful plan to modify the behavior. In the meantime, your dog should be muzzled in public, and extra care should be taken to ensure everyone's safety. Be prepared to commit time, energy, and resources to helping your dog.


3. Be Prepared

Preparing for your dog's aggression can help you handle it. Take the time to devise a plan for how you will manage the situation the next time your dog behaves aggressively. Losing your temper, panicking, tensing, or raising your voice will have a negative impact.

If you display signs of fear, your dog will, too, which may prompt them to become more aggressive. Plan to have the dog wear a muzzle in public, avoid triggers, and have a safe area your dog can retreat to if they are feeling distressed, such as a crate or room.

Remember to remain calm. Take a deep breath if necessary, and remind yourself and your dog that you are taking control of the situation. Use a firm but quiet and calm voice. If possible, remove them from the situation. Keep your body language relaxed to reassure your pet that all is fine and that there’s no need to feel threatened.

Image Credit: Tyagi Jiii, Shutterstock

4. Provide Positive Reinforcement

As a part of your preparation plan, reinforce positive behavior by rewarding your dog in situations where they usually become aggressive. For example, if your dog becomes aggressive around strangers and one begins to approach you, stop at a distance (this should be far away enough from the stranger that your dog hasn’t started growling or displaying aggression) and reward them with treats and praise before calmly moving away.

If you continue with this conditioning, your dog will eventually associate strangers with treats and praise rather than seeing them as a threat. You can then work on reducing the distance or increasing the time.


5. Avoid Threatening Body Language

Image Credit: BehindBooEyes, Shutterstock

Our dogs pick up on our body language. If they begin to display aggressive behavior, it’s essential to use your body language positively to reinforce that you are calm and in control. Here’s a simple list of “do’s” and “don’ts” to help you.

Do:

  • Avoid direct eye contact.
  • Keep your movements slow and steady.
  • Keep the leash loose and relaxed.
  • Turn your body to the side.
  • Avoid jerky or quick movements.
  • Stand between your dog and the person or animal they deem a threat.

Don't:

  • Corner your dog.
  • Lean over your dog.
  • Turn your back on them.
  • Stare at the dog.
  • Run away; this is prey behavior.

6. Avoid Triggers and Less-Than-Ideal Circumstances

By watching your dog’s behavior closely, you should be able to identify triggers and circumstances that cause them to become aggressive. Avoiding those triggers can prevent your dog from displaying aggressive behavior. For example, if your dog becomes aggressive in loud or busy places, avoid putting them in those environments.

Sometimes, it’s a matter of evaluating whether your dog is suited to the environment. For example, if you have kids and your dog becomes aggressive around children and they’re still displaying aggressive behavior after professional help, it may be best for your dog’s well-being (and your family’s) to have them rehomed to someone without children.


7. Try Calming Supplements

There are several dog-calming bites and supplements are available. These treats are designed to lower your pet’s anxiety levels, and it usually takes 30 minutes or so for them to feel calmer.

So, timing is crucial for calming treats to work as part of your strategy to stop your dog’s aggressive behavior. You should give these supplements to your dog at least 30 minutes before meeting a trigger or environment that may cause aggression—for example, before going on a walk. Some supplements take a week or so to work, so check the packet for instructions.

Image Credit: LightField Studios, Shutterstock

8. Socialize Your Dog

Dog socialization is the process of getting your dog comfortable with (or desensitizing them to) people, other animals, unfamiliar surroundings, and circumstances. The idea is that helping your dog learn more about the world will help them gain confidence because they will have less to fear.

It’s best to socialize dogs when they are still puppies. There is a crucial socialization window between 3 and 20 weeks, but older dogs can learn, too. The main thing to remember is that, like any process, socializing takes time. Don’t expect too much from your dog at once, and make sure you give them lots of praise and treats! Also, be careful not to cross your dog's threshold level of comfort. If they can only tolerate strangers at a distance of 50 yards initially, stick to that and don’t get up close and personal.

divider dog faces oct 2024

Causes of Aggression in Dogs

Dogs aren’t normally aggressive, so if they are behaving aggressively, it could be due to one of these underlying issues:

  • Fear — Your dog fears something, someone, or unfamiliar circumstances.
  • Medical/pain — Your dog is suffering from pain or a medical condition that needs investigation, care, and treatment.
  • Protective — Your dog is protecting a family member against what they perceive as a possible threat.
  • Possessive — Possessive aggression is when your dog guards food, toys, or other objects; this behavior is also known as resource guarding.
  • Social — Due to a lack of socialization, a dog will become aggressive upon meeting other animals or humans.

Warning Signs Leading Up to Aggression

Image Credit: Victoria Antonova, Shutterstock

If you watch your pet closely, you’ll be able to recognize some of their precursors, or the body language that they exhibit just before they become outwardly aggressive. It’s important to be able to identify these because it will help you intervene and diffuse the situation quickly before it escalates.

Bear in mind that the following signals could indicate anxiety in your dog, so it’s important to consider the context.

Body Language Signals in Ascending Order of Threat:

  • Yawning, blinking, nose licking
  • Turning head away
  • Turning their body away, raising a paw, walking away
  • Stiffening up, staring
  • Raised hackles (the hair on your dog’s back and neck)
  • Baring teeth/snarling
  • Growling and snapping
  • Biting
divider dog faces oct 2024

Final Thoughts

Several issues could be causing your dog to behave aggressively, but whatever the reason, you must take action immediately. Knowing what to do with an aggressive dog is vital, as they can quickly become dangerous without the proper care, handling, and help.

Aggression is a serious problem, so you should consult your vet to rule out any medical issues and look for an experienced behaviorist to help you determine the root cause of your dog’s aggression. You will need to log the circumstances of each aggressive outburst, learn to recognize triggers and precursors, and make a plan to improve your dog’s behavior and prevent incidents.

See Also:


Featured Image Credit: Victoria Antonova, Shutterstock

The Dogster Newsletter

Expert dog care, straight to your inbox

News, insights, expert advice, and everything dog.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Cheryl Regan
Authored by

Cheryl Regan

Leave a Reply

You're very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let's have a positive and constructive conversation.

Stopping Aggressive Behavior in Dogs: Vet-Verified Tips

Stopping Aggressive Behavior in Dogs: Vet-Verified Tips

If you’ve got an aggressive dog on your hands, whether they frequently act out in aggression or have seemingly random bouts of it, you are not alone. Aggressiv…

Nicole Cosgrove
By Nicole Cosgrove · 3 weeks ago
How to Help an Aggressive or Reactive Dog: 8 Useful Tips (Vet Reviewed)

How to Help an Aggressive or Reactive Dog: 8 Useful Tips (Vet Reviewed)

Unwanted behaviors are a common reason for relinquishment of a pet. It doesn’t get much worse than an aggressive or reactive dog, though. They are a wild card…

Chris Dinesen Rogers
By Chris Dinesen Rogers · 1 month ago
Why Is My Dog Being Aggressive? 8 Common Triggers (Vet Reviewed)

Why Is My Dog Being Aggressive? 8 Common Triggers (Vet Reviewed)

As dog owners, we’re responsible for ensuring our pets are on their best behavior when interacting with other animals and people. Unfortunately, some dogs disp…

Elizabeth Gray
By Elizabeth Gray · 1 month ago
The 10 Types of Dog Aggression: Vet-Approved Facts & FAQ

The 10 Types of Dog Aggression: Vet-Approved Facts & FAQ

Aggression in dogs is a serious issue that some owners find themselves needing help with. A dog may exhibit aggressive behavior for several different reasons,…

Kathryn Copeland
By Kathryn Copeland · 1 month ago

Protective Aggression in Dogs: Expert Tips to Recognize & Stop Behavior

When your dog is aggressive toward others when you are around, it’s only natural to think the root of the behavior is protection. After all, your dog loves you…

Dr. Ashley Darby
By Dr. Ashley Darby · June 17, 2026
Protective Aggression in Dogs: Expert Tips to Recognize & Stop Behavior

Why Do Dogs Bite? 10 Vet-Verified Reasons & Prevention Tips

Did you know that over 4.5 million Americans are bitten by dogs every year? Children are the most common victims of dog bites and also the most likely to be se…

Chantelle Fowler
By Chantelle Fowler · June 17, 2026
Why Do Dogs Bite? 10 Vet-Verified Reasons & Prevention Tips

10 Most Common Dog Behavior Problems & Vet-Approved Solutions

When dogs develop certain unsavory behaviors, it can be very challenging for their owners to navigate. Unfortunately, it can affect the entire dynamic of a hou…

Ashley Bates
By Ashley Bates · June 16, 2026
10 Most Common Dog Behavior Problems & Vet-Approved Solutions

How to Prevent Dog Bites: 15 Vet-Approved Tips to Reduce the Risk

Roughly 62 million American households have at least one pet dog,1 but despite our close relationship with canines, about 4.5 million people are bitten yearly,…

Chris Dinesen Rogers
By Chris Dinesen Rogers · June 29, 2026
How to Prevent Dog Bites: 15 Vet-Approved Tips to Reduce the Risk

Reactive Dog Training: 7 Vet-Approved Tips to Help Your Dog Relax

Reactivity is one trait that can make life significantly challenging for dogs and their owners. Daily walks must stay limited to low-stress areas, dog parks ar…

Nicole Cosgrove
By Nicole Cosgrove · June 16, 2026
Reactive Dog Training: 7 Vet-Approved Tips to Help Your Dog Relax

How to Train a Dog to Not Be Aggressive When Someone Comes to the Door: 8 Vet Approved Tips

Door charging is one of the most frustrating and irritating behaviors that dogs can exhibit. It can make social interactions awkward and stressful. If your dog…

Grant Piper
By Grant Piper · July 4, 2026
How to Train a Dog to Not Be Aggressive When Someone Comes to the Door: 8 Vet Approved Tips

How to Stop Redirected Aggression in Dogs: Vet-Verified Tips & FAQ

Any form of aggression in your dog can be terrifying. In just a few seconds, your lovable, cuddly pup can turn into a blinding flash of teeth. If you don’t kno…

Nicole Cosgrove
By Nicole Cosgrove · June 17, 2026
How to Stop Redirected Aggression in Dogs: Vet-Verified Tips & FAQ

How to Make Your Dog Friendly to Strangers: 10 Vet-Reviewed Tips

If you have a dog, they're going to be around strangers, at least occasionally. It can be dangerous or unpredictable if your dog isn't familiar with strange fa…

Ashley Bates
By Ashley Bates · June 16, 2026
How to Make Your Dog Friendly to Strangers: 10 Vet-Reviewed Tips

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Dogster app on a phone