Why do cats hide when they’re sick? Signs to watch for

Have you noticed your usually affectionate cat suddenly spending more time under the bed, behind furniture or tucked away in a quiet corner? While cats naturally enjoy their own space, a sudden change in hiding behaviour could be their way of telling you something isn’t quite right.

Cats are remarkably good at concealing discomfort, making it difficult for even the most attentive owners to recognise when something is wrong. Understanding why cats hide when they’re sick, along with the subtle signs of illness, can help you identify potential health concerns and seek veterinary advice sooner.

In this article

• Why do cats hide when they’re sick?
• Subtle signs your cat may be unwell
• When is hiding normal?
• What to do if your cat starts hiding
• When should you contact your vet?
• Supporting your cat’s health and wellbeing

Why do cats hide when they’re sick?

Hiding is a natural behaviour for cats, and their instincts play an important role in how they respond to illness or discomfort. Although domestic cats enjoy the safety of our homes, many of their behaviours can be traced back to their wild ancestors.

It’s a natural protective instinct

In the wild, showing signs of weakness can make an animal more vulnerable to predators or other threats. Cats have evolved behaviours that may help them avoid drawing attention to themselves when they’re feeling unwell.

Even in a safe home environment, a sick cat may instinctively retreat somewhere quiet and sheltered.

They may be experiencing pain or discomfort

When cats feel uncomfortable, they may prefer to be left alone rather than engage in their usual activities. Conditions such as dental problems, injuries, arthritis or digestive issues can cause changes in behaviour, including increased hiding.

Because cats don’t always express pain through obvious vocalisations, withdrawing from social interaction may be one of the first noticeable changes.

They’re looking for a quiet, secure space

Illness can make everyday activities feel overwhelming. Bright lights, household noise and frequent interaction may become less appealing to a cat that isn’t feeling its best.

A secluded hiding place may offer a sense of security while your cat rests and recovers.

Subtle signs your cat may be unwell

Hiding alone doesn’t necessarily mean your cat is sick. However, when it’s accompanied by other changes in behaviour or routine, it may be worth investigating further.

Changes in appetite or drinking habits

A cat that suddenly loses interest in food, eats noticeably less or changes its water intake may be experiencing an underlying health issue. Increased thirst can also be associated with certain medical conditions.

Pay attention to how much your cat is eating and drinking, particularly if the change happens alongside unusual hiding behaviour.

Sleeping more or becoming less active

Cats naturally spend a significant portion of their day sleeping. However, unusual tiredness, reduced interest in playing or reluctance to move around may indicate that something is wrong.

If your normally curious cat stops greeting you, exploring or participating in familiar activities, consider whether other symptoms are present.

Changes in grooming habits

Healthy cats generally spend time grooming themselves. A sudden decline in grooming may result in a dull, greasy or matted coat, while excessive licking of one area may suggest irritation or discomfort.

Changes in grooming habits can sometimes provide clues about pain, stress or illness.

Unusual litter box behaviour

Changes in urination or bowel movements should never be overlooked. Signs such as frequent litter box visits, straining, accidents outside the tray or changes in stool consistency may indicate a health concern.

Straining to urinate with little or no urine produced is particularly serious and requires immediate veterinary attention, especially in male cats.

Changes in personality or social behaviour

A normally affectionate cat may become withdrawn, while a typically independent cat might suddenly become unusually clingy.

Some cats may also become more irritable, avoid being touched or react differently when picked up. These changes can be subtle, but they’re worth paying attention to.

When is hiding normal?

Not every hiding cat is unwell. Cats often seek out enclosed spaces because they feel comfortable, secure and protected.

Some common reasons for normal hiding include:

• Resting or sleeping in a favourite quiet spot
• Adjusting to visitors, unfamiliar pets or household changes
• Seeking privacy during busy or noisy periods
• Feeling temporarily frightened by loud noises
• Exploring new spaces around the home

The key is understanding what’s normal for your individual cat. If your cat regularly naps beneath the sofa but otherwise eats, plays and behaves normally, there may be little reason for concern.

However, if hiding becomes more frequent, lasts longer than usual or occurs alongside other symptoms, it’s important to take notice.

What to do if your cat starts hiding

If your cat suddenly begins avoiding interaction or spending more time in secluded areas, there are several steps you can take to better understand what’s happening.

Observe their behaviour

Take note of when the hiding started and whether anything else has changed. Monitor their appetite, drinking habits, energy levels, grooming and litter box use.

Keeping a record of unusual behaviours may help your veterinarian assess the situation.

Provide a calm and comfortable environment

Give your cat access to a quiet, familiar space where they can rest without being disturbed. Ensure fresh water, food and a clean litter tray are easily accessible.

Avoid forcing your cat out of its hiding place unless necessary for safety or veterinary care, as this may increase stress.

Avoid giving human medication

Never give your cat medication intended for people unless specifically instructed by a veterinarian. Some common human medicines can be extremely toxic to cats.

Contact your veterinarian if you’re concerned

If your cat’s behaviour changes suddenly or you notice additional symptoms, contact your veterinarian for guidance. Early assessment can help identify potential problems before they become more serious.

When should you contact your vet?

While some changes in behaviour may be temporary, persistent or unusual hiding deserves attention, particularly if your cat seems uncomfortable or unwell.

Contact your veterinarian promptly if your cat:

• Suddenly hides much more than usual without an obvious explanation
• Stops eating or shows a significant reduction in appetite
• Appears unusually lethargic or weak
• Experiences repeated vomiting or diarrhoea
• Shows signs of pain or discomfort when moving or being touched
• Has noticeable changes in drinking or litter box habits

Seek emergency veterinary care immediately if your cat has difficulty breathing, collapses, has seizures, is severely weak or is straining to urinate without producing urine.

Remember that cats can deteriorate quickly when they’re unwell, so it’s better to seek professional advice rather than wait for symptoms to become more obvious.

Supporting your cat’s health and wellbeing

Understanding your cat’s usual habits is one of the most valuable ways to recognise early signs of illness. By paying attention to small changes in behaviour, appetite and activity, you can become more aware of when your feline companion might need additional care.

Regular veterinary check-ups, a balanced diet, enrichment activities and a safe home environment all contribute to your cat’s overall wellbeing.

It’s also worth thinking about how you would manage unexpected veterinary expenses if your cat became sick or injured.

Help protect your cat with Petcover

Even with attentive care, cats can experience unexpected illnesses or injuries. Having pet insurance in place may help you manage eligible veterinary expenses, giving you additional financial support when your cat needs treatment.

Petcover offers cat insurance options designed to help pet owners prepare for unexpected veterinary costs, subject to the terms, conditions, limits and exclusions of their chosen policy.

Explore Petcover’s cat insurance options and find cover that suits your feline companion.

Insurance cover is subject to eligibility, policy terms, conditions, exclusions and applicable limits. Please refer to the relevant Product Disclosure Statement for full details.