Risk of infection: Kittens have a developing immune system and are more susceptible to catching infections from other cats. Introducing your cat to kittens may increase the risk of transmitting diseases or parasites, which can be harmful to the kittens' health.
Stress: Bringing a new cat into the environment can be stressful for both the mother cat and her kittens. Sudden interactions or encounters with another cat can disrupt the bonding and nursing process, and make the mother cat feel anxious or threatened.
Territorial behavior: Cats are territorial animals and may perceive the presence of another cat as a threat to their space and resources. Introducing your cat may trigger territorial disputes, leading to fights or aggressive behavior that can harm the kittens.
Unsupervised interactions: Allowing unsupervised interactions between your cat and the kittens can be risky. Without proper supervision, your cat may engage in rough play or accidentally injure the kittens, especially if they are very young and fragile.
It is advisable to keep your cat separate from the kittens until they are at least a few weeks old and have received their initial vaccinations. This will help ensure the safety and well-being of both the kittens and your cat.