How to Stop an Older Cat Hissing and Growling at a New Cat

When an older cat hisses and growls at a new cat, it's crucial to keep them separated initially, allowing them to gradually get used to each other's scent. Reassure the older cat that it's still loved and won't be treated differently because of the newcomer. Once they're comfortable, you can try introducing them while supervising, encouraging them to play together to foster a bond. It's important to provide double the amount of resources, such as food bowls and litter boxes, to avoid fights over possessions.

Why is the Older Cat Hissing at the New Cat?

It's common for older cats to reject new cats, displaying hostility through hissing and growling. From the resident cat's perspective, an intruder has entered its territory, and it wants to drive them away. This is a normal reaction, similar to how we might react to a stranger in our home. Cats need time to adjust and familiarize themselves with one another. It takes time for an older cat and a new cat to coexist peacefully.

How to Ease an Older Cat's Hissing at a New Cat

1. When the older cat hisses and growls at the new cat, it's best to keep them separated initially. Allow the cats to gradually adjust to each other's scent. Animals are highly sensitive to smells, and unfamiliar odors can heighten their anxiety.

2. Reassure the older cat and provide it with a sense of security. Otherwise, it might think it's being replaced or no longer loved. The arrival of a new cat might make the older cat feel threatened, so it's important to offer reassurance to reduce its hostility.

3. Only introduce them after they have adjusted to each other’s scents. Encourage interactive play. Spend time playing with both cats to help them bond more quickly.

4. Crucially, have double portions of everything including food bowls, toys, and litter boxes. This will minimize fighting over resources.
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