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How to Introduce a Cat to a Dog

Getting a new pet can be such an exciting and fun experience, but if you already have another pet at home, you’ll need to take some precautions. Move slowly with the introductions by keeping the dog in a crate at first, then later on a leash, while the cat roams free. It may take a few hours or even a few months for the cat and dog to get used to each other, but it’ll be worth it when the process is complete!


EditLetting the Animals Smell Each Other

  1. Keep the animals in separate rooms for the first few days. You want to start the process slowly by keeping the dog and the cat in separate areas. If both animals are indoor-only, you might want to consider locking the cat in a bedroom for a couple of days while everyone adjusts to the change.[1]
    Introduce a Cat to a Dog Step 1.jpg
    • If you separate the cat in a bedroom, make sure you put everything it will need in there too – like food, water, litterbox, and some toys.
    • When you first bring the cat into the house, it's best to have the dog either locked away or out of the home. This way the dog won't jump around the pet carrier and scare the cat as you bring it into the home for the first time.
  2. Touch one animal, then let the other smell the scent on you. Let the animals get used to each other’s scent before actually introducing them. Pet one of the animals individually, then, without changing clothes, go to the other animal and let it sniff the scent. Do this for each animal so that they can grow accustomed to the scent of the other animal before a real face-to-face encounter.[2]
    Introduce a Cat to a Dog Step 2.jpg
    • It’s best if you can keep swapping the scent for a few days, or until the dog and cat stop acting so interested in the new smell.
  3. Let the animals smell each other underneath the door. Once both animals have become accustomed to the others’ scents, let them interact from opposite sides of a door. Bring your dog to the outside of the door to the cat’s room and let them sniff each other from underneath the door.[3]
    Introduce a Cat to a Dog Step 3.jpg
    • If the dog gets too wild or starts digging at the door barrier, you should remove the dog and try again another time when it has calmed down.
    • Don’t move forward to a face-to-face encounter until both animals can smell each other under the door without getting agitated.

EditAllowing Face-to-Face Interactions

  1. Let your cat be in charge of how much it interacts with the dog. During the entire process, you should never force the cat to interact with the dog. Give your cat a way to escape (something high to jump on) and keep the dog at a distance.
    Introduce a Cat to a Dog Step 4.jpg
    • If the cat doesn’t seem interested in engaging with the dog right away, don’t force it. Wait a while and let your cat approach the dog on its own.
    • Don’t force the cat to interact with the dog, no matter how long it takes. Keep making slow progress until the cat feels comfortable enough to approach the dog on its own, even if this process takes weeks.
    • Make sure the cat's front claws are trimmed, and monitor the pets while they're together. Until you're sure they get along peacefully, pay careful attention to where the cat is in relation to the dog. Make sure the cat cannot scratch the dog's face.
  2. Keep the dog in its crate and let the cat roam free for the first few encounters. With the cat in the other room, put your dog in its kennel and lock the door. Then let the cat out and encourage it to follow you into the room with the dog. The cat should eventually get curious about the dog and come close enough to smell the other animal.[4]
    Introduce a Cat to a Dog Step 5.jpg
    • If your dog goes crazy when it sees the cat, try to calm it down using a soothing voice. Encourage the dog to remain calm and use positive reinforcement by giving it treats when it acts the way you want it to.
    • If treats and soothing reassurances aren’t enough to calm your dog down, remove the cat and revert back to the smelling under the door step until the dog is better able to control its excitement.
  3. Keep your dog leashed and let the cat roam free once they have adjusted to the kennel step. Let the dog out of its crate, but keep it firmly controlled on a leash. The cat should be allowed to roam free so that it feels comfortable and able to retreat if necessary. Allow the animals to sniff each other. If the cat reacts poorly by hissing or hiding, this isn’t unusual. Try to let the animals interact for a couple of minutes, but put the cat back in its separate room if it seems too anxious or upset.[5]
    Introduce a Cat to a Dog Step 6.jpg
    • Always keep the dog on a leash (or at least hold it firmly by the collar) to control how close the dog can get to the cat.
    • If your dog jerks at the leash or lunges for the cat, go back to the previous step and put the dog back in its crate.
  4. Try distracting your dog with treats to teach it to ignore the cat. A great way to train your dog to leave the cat alone is to teach the dog that it is more rewarding to not look at the cat through positive reinforcement with treats. When the animals are in the same room, try giving your dog a verbal cue (by using a clicker, or saying a word like “good”) to draw the dog’s attention. Then give the dog a treat.[6]
    Introduce a Cat to a Dog Step 7.jpg
    • This will teach the dog that there are positive consequences for ignoring the cat and looking at you instead.
    • Do this several times throughout each day until the dog loses interest in the cat and focuses on the positive reinforcement treats with no trouble.
  5. Keep the initial interactions to a minimum. It can be quite stressful for both cats and dogs to meet new animals. Try to keep the first few introductions quite short to avoid overloading your pets. Let them see and sniff each other for a few minutes, then separate the animals again.[7]
    Introduce a Cat to a Dog Step 8.jpg
    • You don’t want to create a negative association for either of the animals, so don’t force them to do anything they don’t want to do.
    • A good rule of thumb is that the animals are ready to take the next step when they stop acting upset/overly interested in the current level of interaction.
    • For example, once your pets don’t act interested when they smell each other under the door, it’s time to move to the kennel step. When they don’t get upset being in the same room while the dog is in its crate, and the cat roams freely around, it’s time to move to the leash step.

EditTaking the Proper Precautions

  1. Watch both animals’ body language. During interactions, make sure you monitor both the dog and the cat to make sure they are doing okay. It’s normal for them to be excited, or even a little bit upset, but you don’t want the animals to get too stressed out.[8]
    Introduce a Cat to a Dog Step 9.jpg
    • Some signs that your cat has had enough include pinned back ears, swishing tail back and forth, and growling sounds.
    • If your dog stiffens, stares motionlessly at the cat, or starts barking uncontrollably, it might be time to separate the animals for the moment.
  2. Monitor your cat’s litterbox habits. You should watch your cat’s litterbox for signs about how the introduction is going. If the cat is using the litterbox normally, then it is probably relatively happy and feeling secure with the situation. If your cat is defecating outside the litterbox, it’s quite possible that the stress of the new dog may be causing it. In this case, you’ll need to slow down the introduction process.[9]
    Introduce a Cat to a Dog Step 10.jpg
    • Normal litterbox behavior means that your cat should be using the litterbox several times each day, with no accidents outside the box.
    • Make sure that the dog cannot get into the cat's litterbox. It should also not be able to trap the cat in the litterbox area.
  3. Use positive reinforcement. You want to make the introduction experience as pleasant as possible so that both animals will associate the new pet with something happy or enjoyable. Try to give the cat and the dog treats during the introduction process, especially if they are behaving calmly.[10]
    Introduce a Cat to a Dog Step 11.jpg
    • You should also use a soothing voice and stroke the cat during the introductions. Another person should do the same to the dog. This will also help to create a positive association with the other animal.
  4. Use a baby gate to give the cat an escape option. You might want to consider using a baby gate to partition off part of the house. This way, the cat can jump over the gate and go relax in parts of the house that are inaccessible to the dog.[11]
    Introduce a Cat to a Dog Step 12.jpg
    • At the very least, make sure there are some tables, counters, or high shelves that your cat can jump on to escape from the dog if necessary.
    • This will allow both animals to have the space they need as well as giving your cat the freedom to choose how much or how little it interacts with the dog.
  5. Spray the dog with water if it refuses to get along with the cat. Spraying the dog with water is a counter conditioning strategy that will help the dog learn that being mean to the cat is not allowed. When the dog misbehaves, simply spray it with water. Over time, it will start to avoid those behaviors.
    Introduce a Cat to a Dog Step 13.jpg
    • For example, spray the dog if it nips at the cat.
    • Alternatively, you could use a halti or gentle leader collar or a behavior correcting collar.


  • Make sure that neither pet gets into the other's food or water dish, as this could cause territory issues.
  • Remember that it might be a good idea to get two animals with similar energy levels to help the introduction go more smoothly. An elderly cat will not be amused by the antics of an energetic kitten.
  • Try to disrupt the resident animal’s normal daily routine as little as possible when brining the new animal into the house.


  • If either animal shows signs of aggression, remove them from the situation immediately and start the introduction process over again – beginning with swapping scents, then moving to smelling each other under the door, then put the dog in the kennel, etc.

EditRelated wikiHows

  • Introduce Dogs to Cats
  • Introduce an Older Cat to a New Dog
  • Introduce a New Cat to the Family
  • Introduce a New Puppy to the Resident Cat

EditSources and Citations

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How to Introduce a Cat to a Dog


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