Dogs are known for their loyalty and companionship, but what happens when they start fighting with each other? It can be a distressing situation for pet owners, but understanding the reasons behind these fights can help prevent and resolve the issue. In this article, we will explore the common causes of fights between dogs in the same household and provide practical tips on how to stop them.
Understanding the Triggers

Just like humans, dogs have their own set of triggers that can lead to aggressive behavior. Some common triggers include resource guarding, territoriality, possessiveness, fear, anxiety, and hormonal changes. Dogs may fight over toys, food, treats, attention from their owners, or their favorite resting spots. It’s important to identify these triggers to effectively address the problem.
Resource Guarding
Resource guarding occurs when dogs become possessive over their belongings. This can include toys, food bowls, treats, or even their owners’ attention. When one dog tries to take away another dog’s possessions, it can escalate into a fight. To prevent resource guarding, it’s essential to supervise interactions, provide separate resources, and teach dogs to share through positive reinforcement training.
Territoriality
Dogs are naturally territorial animals, and conflicts can arise when they feel their territory is being invaded. This can occur when a new dog is introduced into the household or when dogs try to establish dominance over certain areas of the house. Creating separate spaces for each dog, such as using baby gates or playpens, can help alleviate territorial disputes.
Fear and Anxiety
Fear and anxiety can also contribute to interdog aggression. Dogs may become fearful or anxious in certain situations, such as during thunderstorms or when meeting new dogs. When dogs feel threatened or overwhelmed, they may resort to aggression as a means of self-defense. It’s important to address the underlying fear or anxiety through desensitization and counter-conditioning techniques, along with seeking professional help if necessary.
Hormonal Changes
Hormonal changes can play a significant role in dog fights, especially when dogs are of the same sex and one is going through sexual maturation. Intact males may become aggressive towards other males, and females in heat may display aggression towards other dogs. Spaying and neutering can help reduce hormone-driven aggression and should be considered as part of the treatment plan.
Stopping Dogs from Fighting in the Same Household
Now that we understand the reasons behind interdog aggression, let’s explore effective strategies to prevent and stop fights between dogs in the same household.
1. Get a Vet Check
If your dogs suddenly start fighting or if the aggression seems unprovoked, it’s crucial to schedule a vet check. Physical pain, illness, hormone imbalances, or other medical issues can contribute to aggressive behavior. Identifying and addressing any underlying health problems is an essential first step in resolving interdog aggression.
2. Develop a Training Plan

Creating a training plan tailored to your dogs’ specific needs is essential for resolving interdog aggression. This plan should include management strategies, counterconditioning, and desensitization techniques. Consider consulting a qualified trainer or behaviorist who specializes in positive reinforcement methods to help you develop and implement an effective training plan.
3. Supervise and Manage Interactions
To prevent fights, it’s crucial to closely supervise and manage interactions between your dogs. This may involve using baby gates or playpens to separate them when necessary, especially during mealtimes or when valuable resources are involved. Providing each dog with their own designated space, including separate beds and food bowls, can help minimize competition and reduce the likelihood of conflicts.
4. Prevent Resource Guarding
To address resource guarding behavior, implement strategies to prevent competition and promote sharing. Pick up food bowls after mealtimes, provide each dog with their own water bowl, and separate them when giving out treats or chews. Teaching dogs to take turns and rewarding them for sharing can help prevent fights over resources.
5. Give Individual Attention
Make sure to give each dog plenty of individual attention and quality time with you. This can include walks, playtime, grooming sessions, or simply sitting together. By providing individual attention, you can help alleviate any feelings of jealousy or insecurity that may contribute to interdog aggression.
6. Teach Stationing Behavior
Teaching dogs to have their own designated spots or beds can be beneficial in preventing conflicts. Train them separately to go to their designated areas and gradually introduce them to each other’s presence. This helps establish positive associations and teaches them that being near each other is a calm and rewarding experience.
7. Train Basic Obedience Cues
Training your dogs in basic obedience commands is essential for maintaining control and preventing conflicts. Teach them commands such as sit, stay, and leave it, using positive reinforcement techniques. Regular training sessions not only reinforce obedience but also provide mental stimulation, which can help reduce boredom and potential triggers for aggression.
8. Top Tips for Peaceful Coexistence
If you have dog siblings, these additional tips can help ensure they get along well:
- When introducing a new dog to the household, allow them to meet on neutral territory to reduce territorial aggression.
- Avoid favoritism and ensure each dog receives equal attention and affection.
- Feed dogs in separate areas to prevent competition and resource guarding.
- Provide each dog with their own bed or crate to establish a sense of personal space.
- Limit play fighting among littermates to prevent it from escalating into aggression.
- Walk and train dogs separately, especially during developmental periods or when facing hormonal changes.
9. Learn to Read Dog Body Language
Understanding dog body language is crucial for recognizing signs of discomfort, anxiety, or potential aggression. By learning to interpret their subtle cues, such as growling, lip lifting, raised hackles, and staring, you can intervene and defuse potential conflicts before they escalate into fights.
10. Seek Professional Help
If the aggression persists or escalates despite your efforts, it may be necessary to seek professional help from a qualified trainer or behaviorist. They can provide a fresh perspective and develop a tailored behavior modification plan to address the specific needs of your dogs. In severe cases where safety is a concern, rehoming may be the best option for all involved.
Remember, maintaining a peaceful and harmonious multi-dog household requires patience, consistency, and a commitment to understanding and addressing the underlying causes of interdog aggression. With the right approach, training, and management strategies, you can help your dogs coexist peacefully and enjoy a happy and balanced life together.

FAQs
- Why do dogs in the same household fight?
Dogs may fight due to resource guarding, competition for attention, territorial disputes, or personality differences. - How can I prevent fights between my dogs?
Provide separate resources like food bowls and toys, establish clear rules, and ensure both dogs get enough exercise and mental stimulation. - Is it normal for dogs in the same home to fight occasionally?
Minor disagreements can happen, but frequent or intense fights are a sign of deeper issues that need addressing. - What should I do if my dogs are fighting?
Safely separate them without using your hands, calm them down, and evaluate the trigger to prevent future conflicts. - Can dogs that fight ever get along?
With proper training, behavior modification, and sometimes professional help, many dogs can learn to coexist peacefully.