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.

Cat Health

Why Is My Cat Hiding? UK Stress, Illness & When to Worry

Published 25 June 2026Last updated 25 June 20264 min read

Quick answer

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, fast breathing, or excessive meowing

Common causes

Cause	Context
Stress / fear	New pet, baby, building work, bullying from another cat
Pain	Arthritis, dental disease, injury
Illness	Kidney disease, infections, fever
Urinary problems	Painful urination — FLUTD
Pregnancy / kittening	Seeking nest — if not spayed
Cognitive decline	Senior cat confused, hides in odd places — Cat cognitive dysfunction

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 — dental pain, nausea, systemic illness
Weight loss — hyperthyroidism, cancer, kidney disease
Litter tray avoidance — cystitis, constipation — 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
Known trauma — road accident, fall, dog attack
Toxin exposure — Lily poisoning 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.

Sources & further reading

Facts in this guide are rewritten in plain English from publicly available UK advice. We name the organisation where a specific point comes from their guidance. Links below go to the original pages — use them to read the source material directly.

PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Guidance checked against sources listed below (last updated 2026-06-25).

Related guides

Frequently Asked Questions

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.