Petopedia

Why Is My Cat Hiding? When It's Stress and When It's Illness

6 min read. Updated 3 October 2026.CatsBehaviour
A Russian Blue cat

In short

Hiding is a normal way for cats to cope with stress, such as a house move, visitors or loud noises. Hiding that is new for your cat, lasts longer than usual, or comes with not eating, not using the litter tray or changes in breathing can be a sign of pain or illness and should be checked by your vet.

Call your vet now if

  • Your cat is hiding and breathing fast, with effort or with an open mouth
  • Your cat is straining in the litter tray, passing little or no urine, or crying in the tray (this is an emergency, especially in male cats)
  • Your cat has not eaten for around a day, or will not come out even for favourite food
  • There is repeated vomiting, diarrhoea or any blood
  • Your cat seems weak, wobbly, cannot stand properly or has collapsed
  • You think your cat may have had an accident, a fall or contact with something toxic
  • Your cat cries out, growls or lashes out when touched in a way that is unusual for them

If you are unsure, ring your vet or an out-of-hours service. Describing what you see on the phone is always a reasonable step.

Why cats hide

Cats are both hunters and, in the wild, potential prey. Finding a small, enclosed and quiet space is one of their main ways of feeling safe. A cat who tucks themselves under a bed or on top of a wardrobe is often simply removing themselves from something they find overwhelming, and once the situation passes they come back out on their own.

This instinct also means cats tend to hide when they feel vulnerable, including when they are in pain or unwell. Showing weakness can be risky for an animal in the wild, so many cats keep discomfort to themselves and withdraw instead. That is why hiding is worth paying attention to, even though it is so often harmless.

Normal hiding: stress and change

Common, everyday reasons for hiding include:

  • A new home. Many cats hide for a few days, sometimes longer, after moving. Shy or rescued cats may take a couple of weeks to settle.
  • Visitors. Unfamiliar people, especially children or loud guests, can send a cat under the bed until the house is quiet again.
  • Noise. Fireworks, thunder, building work, vacuum cleaners and parties are frequent triggers.
  • Changes at home. New furniture, a new baby, a new pet, or someone moving out can all unsettle a cat.
  • Personality. Some cats are naturally more reserved and simply like a quiet den for daytime naps.

In these situations, hiding usually has an obvious cause, your cat still eats, drinks and uses the tray, and they reappear once things settle down, often in the evening or when the house is calm.

When hiding may be a sign of illness or pain

The most important question is whether this is a change for your cat. A cat who has always napped in the airing cupboard is different from a sociable cat who suddenly vanishes. Hiding is more concerning when:

  • There is no obvious reason, such as visitors or noise
  • It is out of character, or your cat is hiding in a new or unusual place
  • It goes on for longer than a day or so
  • Your cat is not eating, or is eating much less
  • Your cat is not using the litter tray, or is using it much more or straining
  • Breathing looks different, such as faster, heavier or with the mouth open
  • Your cat seems reluctant to move, jump or be picked up
  • Grooming has stopped, or there is over-grooming of one area
  • Your cat sits hunched with eyes half closed, or seems withdrawn and flat

Cats in pain often show quite subtle signs. A tense, tucked-up posture, squinting, a lowered head and less interest in surroundings can all suggest discomfort. Our guide to understanding cat body language explains some of these signals in more detail.

If your cat is hiding and also not eating, read why is my cat not eating. Cats should not go long without food, so this combination is a good reason to call your vet promptly.

How to check on a hiding cat gently

You can learn a lot without dragging your cat out:

  • Look at their breathing from a distance. Is it calm and even, or fast and effortful?
  • Check whether food and water have been touched since you last looked
  • Look in the litter tray for normal amounts of urine and faeces
  • Offer a favourite treat near the hiding place and see if there is any interest
  • Notice how they respond to your voice. Do they look up, blink, or seem unaware?

Try not to pull a frightened cat out of a hiding place unless there is an emergency, as this can make them more stressed and you may be scratched or bitten. If you need to get them to the vet, place the carrier next to the hiding spot, or gently wrap them in a towel.

Jotting down what you notice, such as when they last ate, how often they used the tray and how long they have been hiding, helps your vet build a picture. You can keep these notes in Petopedia so the timeline is easy to show at the appointment.

Give your cat a safe place to hide

For stress-related hiding, the kindest approach is to let your cat hide, and to make sure they have somewhere good to do it.

  • Offer a covered bed, a cardboard box on its side, or a space under furniture
  • Provide raised spots, such as a shelf or the top of a cat tree, as many cats feel safest up high
  • Keep food, water and a litter tray within easy reach of their chosen spot, especially in a new home
  • Keep the house as calm as you can, and ask visitors to let your cat come to them
  • Stick to a regular routine for meals and play
  • Avoid forcing interaction. Sitting quietly nearby and letting them approach in their own time builds trust

During fireworks or other predictable noisy events, close curtains, play gentle background sound and keep your cat indoors with access to their favourite hiding places.

When to call the vet

As a general guide:

  • Call straight away if hiding comes with any of the signs listed at the top of this page.
  • Call the same day if your cat is hiding and not eating, or hiding and seems unwell in any way.
  • Book an appointment if hiding is new, has no obvious cause and has lasted more than a day or two, even if your cat seems otherwise fine.

Our guide to signs your pet needs a vet can help you decide how quickly to act, and the symptoms section covers other changes you may notice.

You know your cat better than anyone. If something feels different, trust that instinct and get them checked.

Written by the Petopedia editorial team to our editorial standards. This is general information, not veterinary advice — if you're worried about your pet, contact your vet.