---
title: "Why Is My Cat Hiding?"
description: "Cats hide when stressed or unwell. Sudden hiding with reduced eating often signals illness — UK cats mask pain until they withdraw."
url: "https://pethealth.org.uk/health/why-is-my-cat-hiding"
canonical: "https://pethealth.org.uk/health/why-is-my-cat-hiding"
date_published: "2026-06-25"
date_modified: "2026-06-25"
source: "PETHEALTH+"
---

# Why Is My Cat Hiding?

**Cats hide by instinct — under beds, in wardrobes, or high shelves.** Normal hiding in a secure spot with regular eating is fine. **Sudden withdrawal, hiding all day, not eating, or avoiding the litter tray** often signals illness or severe stress — UK cats mask pain until they shut down. Book a vet check if hiding is new or paired with other changes.

## Normal hiding vs worrying withdrawal

**Normal:**

- Cat naps in favourite hidey-holes daily
- Emerges for meals and play
- New cat hides **1–2 weeks** while exploring — eats when quiet
- Brief retreat during fireworks or visitors — returns when calm

**Worrying:**

- **Sudden** hiding in a cat that was sociable
- Stays hidden **all day and night**
- **Not eating** or drinking for 24 hours
- **Not using litter tray** — or going outside tray in pain
- **Low posture**, flattened ears, growling when approached
- Hiding with **[vomiting](/health/why-is-my-cat-vomiting)**, [fast breathing](/health/cat-breathing-fast), or [excessive meowing](/health/why-is-my-cat-meowing-excessively)

## Common causes

| Cause | Context |
|-------|---------|
| **Stress / fear** | New pet, baby, building work, bullying from another cat |
| **Pain** | [Arthritis](/health/cat-arthritis-uk), dental disease, injury |
| **Illness** | [Kidney disease](/health/kidney-disease-in-cats), infections, fever |
| **Urinary problems** | Painful urination — [FLUTD](/health/flutd-cats-uk) |
| **Pregnancy / kittening** | Seeking nest — if not spayed |
| **Cognitive decline** | Senior cat confused, hides in odd places — [Cat cognitive dysfunction](/health/cat-cognitive-dysfunction-uk) |

### Stress hiding

According to Cats Protection, cats are **territory-sensitive**. Changes that seem minor to us — new sofa smell, neighbour's cat at the window — can trigger retreat. Multi-cat homes need **multiple resources** (bowls, trays, beds) to reduce bullying-related hiding.

### Illness hiding — the masked patient

Evolution taught cats to **hide weakness** from predators. By the time an owner notices hiding, disease may be advanced. Common associations:

- **[Not eating](/health/cat-not-eating)** — dental pain, nausea, systemic illness
- **Weight loss** — [hyperthyroidism](/health/hyperthyroidism-in-cats), cancer, kidney disease
- **Litter tray avoidance** — cystitis, constipation — [Cat constipation](/health/cat-constipation)

## When to see a vet urgently

**Same-day or emergency care** if hiding occurs with:

- **No food for 24 hours** — faster in kittens and diabetic cats
- **Cannot urinate** or crying in tray — blocked bladder emergency in males
- **Open-mouth breathing** or collapse — [Cat panting](/health/why-is-my-cat-panting)
- **Known trauma** — road accident, fall, dog attack
- **Toxin exposure** — [Lily poisoning](/health/lily-poisoning-in-cats) if lilies in home

Book a **routine vet visit within a few days** for new hiding with subtle appetite reduction or weight loss.

## Home monitoring

**Provide without forcing interaction:**

- **Quiet hiding places** — cardboard box, igloo bed, high shelf
- **Litter tray, water, and food** near hideout — not beside loud appliances
- **Feliway diffuser** for stress — optional adjunct, not replacement for vet care

**Track daily:**

- Amount eaten — weigh biscuits if needed
- Urine and faeces in tray — blood, diarrhoea, absence
- Grooming — matted coat suggests pain or illness
- Interactions — flinching when touched may localise pain

**Gently coax** with warm smelly food (tuna in spring water, small amount) — if they eat, note what worked for the vet.

**Do not:**

- Drag cats from hiding — increases fear and risk of bites
- Assume "just stress" for **more than 48 hours** without eating
- Add new pets or rearrange furniture while investigating illness

## What your vet may do

Quiet examination, blood and urine tests, blood pressure, and imaging if needed. Pain relief, fluids, and specific treatment for urinary, dental, or chronic disease. Behaviour referral for persistent stress once health is cleared.

## Related guides

- [Cat not eating](/health/cat-not-eating)
- [Why is my cat meowing excessively?](/health/why-is-my-cat-meowing-excessively)
- [Senior pet care UK](/health/senior-pet-care-uk)
- [Cat arthritis UK](/health/cat-arthritis-uk)
- [Kidney disease in cats](/health/kidney-disease-in-cats)
- [FLUTD cats UK](/health/flutd-cats-uk)

## FAQs

### Is hiding always bad in cats?

Not always — cats need safe retreats. New or prolonged hiding with appetite loss, litter tray changes, or lethargy usually means illness or severe stress and needs a vet visit.

### How long should I wait before calling the vet?

If hiding over 24 hours with no eating, call your vet the same day. Cats that stop eating for 48 hours — especially overweight cats — risk hepatic lipidosis.

### Can new cats hide for days?

Yes during adjustment — provide hiding spots, Feliway, and gradual room access. Eating and using the litter tray privately is fine; total refusal of food after 24 hours is not.

### Do painful cats hide?

Yes — pain is a top reason for sudden withdrawal. Arthritis, dental disease, abdominal pain, and urinary obstruction all cause hiding. Quiet cats may show no other signs.

## Sources

- [PDSA — Cat behaviour](https://www.pdsa.org.uk/pet-help-and-advice/pet-health-hub)
- [Blue Cross — Understanding your cat's behaviour](https://www.bluecross.org.uk/pet-advice)
- [Cats Protection — Aggression and fear](https://www.cats.org.uk/help-and-advice)

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Last modified: 2026-06-25