Cats Often Hide Pain: Seven Behaviour Changes Pet Owners Should Not Ignore

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Cats can appear remarkably independent, often continuing their usual routines even when something is wrong. This can make it difficult for owners to recognise discomfort, particularly when there is no obvious injury.
Sunlit Tabby Relaxing on a Blanket


Veterinary guidance highlights an important point: changes in behaviour can be as significant as visible physical symptoms. A cat that suddenly hides more often, eats less or avoids being touched may be experiencing pain or illness. Recognising these changes early can help owners seek appropriate veterinary care before a problem becomes more serious.

1. Hiding more than usual

Cats sometimes retreat to quiet places when they feel unwell. If a normally sociable cat begins spending most of its time under furniture or avoiding familiar people, pay attention to the change.


Hiding alone does not prove that a cat is in pain, but a sudden or persistent change deserves investigation.

2. Changes in appetite or drinking

A cat that eats less, refuses food or begins drinking noticeably more or less may have a health problem.


Changes can have many causes, including dental discomfort, digestive illness or other medical conditions. Do not assume that a reduced appetite is simply fussiness.

3. Altered grooming habits

Cats normally groom themselves regularly. Some may stop grooming properly when they feel unwell, leaving their coat untidy.

Others may repeatedly lick a particular area, potentially irritating the skin. Excessive grooming can have several causes, so veterinary assessment may be needed.

4. Limping or avoiding jumps

Reluctance to climb, jump or use stairs may indicate pain or reduced mobility. Watch for stiffness after resting, an unusual posture or a preference for lying in one position.

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Do not force a cat to move simply to test whether it can walk.

5. Unusual vocalisation or aggression

A cat that starts growling, hissing or reacting strongly to handling may be frightened or uncomfortable.

Some cats become unusually quiet instead. The important clue is a change from the animal's normal behaviour.

6. Litter tray changes

Straining to urinate, repeated unsuccessful attempts to pass urine or producing very little urine can indicate a serious problem.

A cat that cannot urinate needs urgent veterinary attention. Do not wait for the behaviour to resolve on its own.


7. Changes in posture and energy

Trembling, an arched back, unusual stillness or marked lethargy can accompany illness or pain.

If a cat has difficulty breathing, collapses, develops pale gums or cannot stand properly, seek emergency veterinary care.

What should owners do?

Record when the behaviour began and whether appetite, drinking, movement or toileting has changed. Contact a veterinarian for advice rather than giving human painkillers, which may be dangerous to cats.

Cats cannot explain their symptoms, so careful observation matters. A change in behaviour is not a diagnosis, but it can be an important reason to seek help.

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