Introducing a new pet to an anxious cat can be a delicate process. With careful steps and proper guidance, you can help your anxious cat adjust to the new addition and create a harmonious environment for all your pets. Here is a step-by-step guide to make the introduction process as smooth as possible:

1. Prepare a separate space: Before bringing the new pet home, set up a separate space for them. This could be a spare room or a designated area with all the necessary supplies, such as food, water, litter box, toys, and a comfortable bed.
2. Gradual scent introduction: Start by exchanging scents between your cat and the new pet. Rub a towel or a soft cloth on one pet and place it near the other pet's space. This allows them to get familiar with each other's scent without direct contact.
3. Visual introduction: Once your cat and the new pet are comfortable with each other's scents, it's time for a visual introduction. Use a baby gate or a pet gate to separate them physically while allowing them to see each other. This way, they can observe and assess each other's body language without feeling threatened.
4. Positive reinforcement: During the visual introduction, reward both pets with treats, praise, and affection whenever they display calm and non-aggressive behavior. This positive reinforcement helps them associate each other's presence with positive experiences.
5. Controlled face-to-face meetings: Once both pets seem relaxed during the visual introduction, you can gradually progress to controlled face-to-face meetings. Use a leash or harness for the new pet and allow them to approach each other while closely monitoring their behavior. If any signs of anxiety or aggression arise, separate them and try again later.
6. Gradual interaction: Over time, increase the duration of face-to-face meetings and allow supervised interaction between the pets. Pay attention to their body language and intervene if necessary. If any negative behavior occurs, separate them and continue with gradual introductions.
7. Patience and consistency: Remember that each pet is unique, and the introduction process may take time. Be patient, consistent, and provide plenty of love, attention, and individual time for both pets. Slowly increase their shared time together as they become more comfortable with each other.

By following these step-by-step guidelines, you can help your anxious cat adjust to a new pet and foster a peaceful coexistence. Remember to consult with a veterinarian or animal behaviorist for specific advice tailored to your cat's needs.

For more information, you can refer to reputable sources such as:

• ASPCA: Aggression Between Cats in Your Household
• The Humane Society: Introducing Your New Dog to Your Resident Cat
• Cornell University College of Veterinary Medicine: Introducing a New Cat

Remember that each cat's response to new pets may vary, so it's crucial to tailor the introduction process based on your cat's individual needs and comfort level.