How to Introduce Cats: A Slow, Low-Stress Plan

Give the newcomer a quiet room with their own litter box, food, water, resting place, hiding place, scratching surface, and toys. The resident cat should keep access to the rest of the home and their familiar routine.

This first stage reduces the pressure of immediate contact. It also lets you confirm that both cats are eating, toileting, resting, and behaving normally before increasing social exposure.

When both cats are settled, exchange bedding or other scent-carrying items. You can also allow each cat to explore the other cat's space separately. Only then move to brief visual contact through a secure barrier such as a gate or partly opened door.

Pair calm exposure with something positive, such as a meal or play, while keeping enough distance that neither cat feels trapped. If either cat stays highly aroused, hides for long periods, stops eating, or repeatedly charges the barrier, increase distance and return to an easier step.

After repeated calm barrier sessions, try supervised time in a room with multiple exits and elevated options. Do not hold the cats close together or force nose-to-nose greetings.

Some cats move through the stages quickly; others need weeks or longer. A pause or step backward is not failure. The goal is predictable, low-stress coexistence, and friendship is a bonus rather than a requirement.