The Cat Under the Bed Is Not a Failure
A significant proportion of newly adopted cats spend their first days — sometimes weeks — hiding. If you have just brought home a rescue cat who has disappeared behind the sofa and refuses to come out, you have not done anything wrong. You have simply adopted a cat, and cats are not dogs. They do not bond through exuberant greeting. They bond through time, routine, and the slow realisation that nothing bad is happening.
What Happens in the Body During Stress
Cats are physiologically sensitive to environmental change. The relocation from a rescue centre to a home involves a complete disruption of scent landscape, social structure, and predictable routine. Cortisol rises, appetite drops, and the immune system becomes temporarily suppressed. This is why upper respiratory infections — sometimes called cat flu — are common in newly homed cats even when the shelter appeared clean and well-managed.
Book a veterinary appointment within the first week. Ask the vet to check for signs of respiratory infection, parasites including ear mites and fleas, and any underlying dental disease. Confirm vaccination records are up to date and ensure the microchip is transferred to your name and address immediately.
Setting Up for Success Before the Cat Arrives
The base camp approach
Rather than giving a rescue cat free access to your entire home from day one, confine them initially to one quiet room — ideally not a high-traffic space. This room should contain a litter tray, water, food, a hiding place at ground level and one elevated, and a worn item of your clothing. This allows the cat to absorb a manageable amount of new sensory information and establish a safe zone before expanding their territory.
Litter tray placement
Place the litter tray away from food and water, and away from noisy appliances. Use unscented litter initially. Many cats who have been using a specific substrate in the rescue centre may refuse alternatives, so ask what they were using before you buy in bulk.
Reading Feline Body Language
Understanding what your rescue cat is telling you accelerates trust-building considerably. A cat with flattened ears, tucked tail, and dilated pupils is frightened and needs space, not comfort. A slow blink from across the room is an invitation, not an accident. Gradually crouching down to their level and offering a finger for them to sniff — rather than reaching over them — respects their need for control in an interaction.
Do not attempt to handle a hiding cat. Do not pull them out from beneath furniture. The hiding space is a coping mechanism, and removing it removes their sense of agency. Instead, sit near the hiding spot, read aloud or speak quietly, and let them choose when to emerge.
Common Health Issues in Newly Adopted Cats
Upper respiratory infections
Sneezing, eye discharge, and reduced appetite in the first week or two are common and usually manageable with veterinary support. Keep the cat warm, ensure they are eating and drinking, and seek veterinary advice promptly if symptoms worsen or the cat stops eating entirely for more than 24 hours.
Gastrointestinal disturbance
As with dogs, sudden dietary change causes digestive upset. Continue the rescue centre's food where possible and transition to your preferred diet over ten days to two weeks. Loose stools that persist beyond a few days, or that are accompanied by blood or significant weight loss, should be investigated by a vet.
Stress-related cystitis
Feline idiopathic cystitis — inflammation of the bladder without infection — is strongly associated with stress and is particularly common in the first weeks after rehoming. Signs include straining in the litter tray, frequent urination of small amounts, blood in the urine, and vocalisation during toileting. This requires urgent veterinary attention, particularly in male cats where urinary blockage can be life-threatening.
Multi-Pet Households
Introducing a rescue cat to existing pets should be approached with patience and structure. Keep animals separated initially with scent-swapping via bedding, and use baby gates or door barriers to allow visual contact before full introduction. Rushed introductions cause setbacks that can take months to undo. If there are already cats in the household, expect a minimum of two to four weeks before unsupervised contact is safe.
A Practical Summary for Rescue Cat Adopters
- Vet check within the first week — health certificate, parasite screen, vaccination review
- Base camp room set up before the cat arrives, not after
- Hiding behaviour is normal — do not force interaction
- Continue rescue centre food for at least ten days, then transition gradually
- Litter tray placed away from food, in a low-traffic area
- Watch for respiratory symptoms and urinary changes — both require prompt vet contact
- Introduce other pets gradually over several weeks minimum
- Let the cat set the pace for all social contact