How to Tell When Your Cat Is Stressed: 10 Behaviour Changes Owners Should Notice

Written by Dr. Mamman Job
Registered Veterinary Surgeon | Veterinary Council of Nigeria
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Cats do not always show stress in obvious ways. A frightened cat may hiss, run away or hide, but another may simply stop playing, eat less, groom excessively or avoid the people it usually enjoys being around. Because cats often conceal discomfort, these small changes can be easy to overlook.

Stress can develop when a cat feels threatened, uncomfortable or unable to cope with something in its environment. Common triggers include moving to a new home, unfamiliar visitors, loud noises, changes in routine, conflict with other animals and limited access to essential resources.

However, not every unusual behaviour is caused by stress. Pain, urinary problems, digestive disorders and other illnesses can produce similar changes. Owners should therefore avoid diagnosing stress based on behaviour alone.

This guide explains ten behaviour changes that may indicate stress in cats, common causes, practical ways to help, and situations where veterinary attention is important.

What Does Stress Look Like in Cats?

Stress is the physical and behavioural response to a situation that a cat perceives as challenging or threatening. It may be temporary, such as when a cat encounters an unfamiliar visitor, or prolonged when the underlying problem continues.

A brief reaction to an unfamiliar sound does not necessarily mean a cat has a serious stress problem. A cat may hide for a short time, assess the situation and return to normal once it feels safe.

Concern increases when the behaviour is persistent, becomes more intense, or interferes with eating, drinking, sleeping, grooming, playing or using the litter box.

Cats also have individual personalities. A naturally reserved cat may spend more time alone than a confident, social cat. The most useful warning sign is often a noticeable change from that particular cat’s normal behaviour.

10 Behaviour Changes That May Indicate Stress in Cats

1. Hiding More Often Than Usual

Hiding is a normal feline behaviour. Cats use quiet, enclosed spaces to rest, feel protected and observe their surroundings.

However, a cat that suddenly spends most of the day under a bed, behind furniture or inside cupboards may be experiencing fear or stress.

You may notice that your cat:

• Avoids family members or visitors.
• Refuses to leave its hiding place even when food is available.
• Hides whenever it hears familiar household noises.
• Stops sleeping in its usual resting areas.
• Becomes difficult to approach.

For example, a previously sociable cat may begin hiding after a new pet arrives or after furniture is rearranged.

What owners can do: Provide a quiet hiding place where the cat can retreat without being disturbed. Avoid dragging it out, chasing it or forcing interaction. If the hiding is new, persistent or accompanied by other symptoms, arrange a veterinary assessment.

2. Changes in Appetite or Feeding Habits

Stress can affect a cat’s interest in food. Some cats eat less when they feel threatened, while others may eat more in certain circumstances.

Possible changes include:

• Leaving food unfinished.
• Refusing meals in the presence of another animal.
• Waiting until the household becomes quiet before eating.
• Becoming unusually demanding around feeding time.
• Eating less frequently than normal.

A cat may avoid its food bowl if another animal blocks access to it or if the feeding area is noisy and exposed.

However, reduced appetite should never automatically be attributed to stress. Dental pain, nausea, infection and other medical conditions can also make eating difficult.

What owners can do: Feed your cat in a calm location where other pets cannot intimidate or interrupt it. Keep feeding times reasonably predictable and monitor how much it eats.

Contact a veterinarian promptly if your cat stops eating, eats significantly less than usual or shows additional signs of illness. Do not wait several days assuming the problem is emotional.

3. Excessive Grooming or Reduced Grooming

Grooming is an important part of normal feline behaviour. Cats clean their coats to maintain hygiene and regulate their comfort.

A stressed cat may groom excessively, sometimes concentrating on the abdomen, legs or other accessible areas. Repeated licking can eventually cause hair loss, skin irritation or wounds.

Other cats may groom less frequently, leaving their coats greasy, tangled or unkempt.

Watch for:

• Repeated licking of the same area.
• Bald patches or thinning fur.
• Red or irritated skin.
• More hairballs than usual.
• A coat that appears dirty or poorly maintained.

Stress can contribute to excessive grooming, but skin disease, parasites, allergies and pain must also be considered.

What owners can do: Observe where and how often your cat grooms itself. Take photographs of visible hair loss or skin changes and discuss them with a veterinarian. Avoid applying human creams or medications without veterinary guidance.

4. Avoiding the Litter Box or Urinating Outside It

A cat that suddenly stops using its usual litter box may be experiencing environmental discomfort, social conflict or a medical problem.

Possible stress-related reasons include:

• A dirty or poorly positioned litter box.
• Another cat blocking access.
• A new litter type or strong fragrance.
• A noisy location.
• Insufficient litter boxes in a multi-cat household.

Some cats may begin urinating in quiet corners, on clothing or on furniture when they feel uncomfortable with their usual toileting arrangements.

However, urinary disease, bladder inflammation, constipation and other painful conditions can produce similar behaviour.

Important: A cat repeatedly straining to urinate, producing little or no urine, crying while attempting to urinate or showing obvious discomfort needs urgent veterinary attention. A urinary obstruction, particularly in male cats, can be life-threatening.

Do not punish a cat for toileting outside its box. Arrange a veterinary assessment to investigate possible medical causes.

For more detailed guidance, read our article on why cats use the floor instead of the litter box.

5. Becoming Aggressive or Less Tolerant

A normally friendly cat may become defensive when it feels frightened, threatened or uncomfortable.

Signs may include:

• Hissing or growling.
• Swatting when someone approaches.
• Biting during handling.
• Chasing or attacking another household pet.
• Avoiding physical contact.
• Becoming unusually sensitive when touched.

Aggression may occur when a cat has no easy escape route or feels that another animal is competing for food, resting areas or access to the litter box.

For example, a cat may begin hissing at another household cat after a new kitten arrives and starts using its favourite resting area.

Pain can also cause a cat to react aggressively, especially when a painful body part is touched.

What owners can do: Give the cat space and avoid punishment, shouting or physical correction. Separate animals safely if there is a risk of injury, and reintroduce them gradually when appropriate. A sudden personality change or aggression during handling should be discussed with a veterinarian.

6. Increased Meowing, Growling or Other Vocalisation

Changes in vocal behaviour may provide another clue that something is wrong.

A stressed cat may:

• Meow more frequently.
• Yowl when left alone.
• Growl when approached.
• Cry near doors or windows.
• Make repeated sounds around another animal.

Some cats become quieter instead, especially when they withdraw from normal social interaction.

Vocalisation does not have one universal meaning. Cats may vocalise because they want attention, food or access to an area. Pain, age-related changes and medical conditions can also affect vocal behaviour.

What owners can do: Notice when the sounds occur and whether they are associated with a particular person, animal, location or activity. Record a short video if the behaviour is unusual. Seek veterinary advice if the change is sudden, persistent or accompanied by other symptoms.

7. Losing Interest in Play and Exploration

Play, climbing, exploring and investigating surroundings are normal parts of feline life.

A cat experiencing prolonged stress may become less active. It may stop chasing toys, avoid familiar play areas or spend more time sleeping and hiding.

For example, an indoor cat that previously enjoyed chasing a toy in the evening may stop playing after a major household change.

Reduced activity can also result from pain, obesity, arthritis, illness or ageing. It should not automatically be interpreted as boredom or stress.

What owners can do: Offer short, gentle play sessions using toys your cat already enjoys. Allow the cat to approach and participate voluntarily. Provide safe places to climb, observe and rest.

If your cat has suddenly become inactive or struggles to jump, walk or move comfortably, arrange a veterinary examination.

8. Becoming More Alert, Easily Frightened or Restless

A cat that feels unsafe may remain constantly alert to its surroundings.

You may notice:

• Sudden reactions to ordinary household sounds.
• Frequent scanning of doors and windows.
• Restlessness or pacing.
• Repeatedly changing resting locations.
• Freezing when someone approaches.
• Avoiding areas where it previously felt comfortable.

Body language can provide additional clues. A tense crouching posture, flattened or backward-facing ears, widened pupils and a rapidly moving tail may indicate fear or agitation.

These signs should be interpreted together with the surrounding situation. For example, dilated pupils can also occur in low light or during play.

What owners can do: Reduce unnecessary noise and avoid sudden approaches. Give the cat access to quiet resting areas and allow it to decide when to interact.

9. Withdrawing From People or Other Pets

Some cats enjoy human company and regularly approach family members. Others prefer limited interaction.

A possible sign of stress is a clear change in an established social pattern.

A cat may:

• Stop greeting familiar people.
• Avoid sitting near its owner.
• Refuse to share resting spaces with another cat.
• Spend more time alone.
• Become unusually dependent on one person.
• Avoid being handled when it previously tolerated it.

Social withdrawal may happen after a move, the arrival of a new family member, a change in household routine or conflict with another pet.

What owners can do: Avoid forcing affection or repeatedly picking up the cat. Allow it to approach voluntarily. Provide separate food, water, resting and toileting areas where necessary, particularly in homes with multiple cats.

10. Changes in Sleeping Patterns and Daily Routine

Cats spend a substantial part of the day resting, but changes in their normal sleep and activity pattern may be worth investigating.

A stressed cat may:

• Sleep in unusual hiding places.
• Become restless at night.
• Spend less time in familiar resting areas.
• Remain awake and alert for long periods.
• Stop following its usual feeding or play routine.

These changes may occur when a cat is disturbed by noise, household activity, unfamiliar animals or a lack of safe resting spaces.

However, excessive sleep, night-time vocalisation and changes in activity can also be associated with medical conditions, especially in older cats.

What owners can do: Observe the cat’s routine over several days and identify any changes in the household that may be affecting it. Keep feeding, play and rest opportunities reasonably predictable. Seek veterinary advice if the change persists or is accompanied by physical symptoms.

Common Causes of Stress in Cats

Recognising the signs is only the first step. Owners should also consider what may be making their cat feel unsafe or uncomfortable.

Changes in the Home Environment

Cats often rely on familiar surroundings. Moving house, rearranging furniture, renovating a room or introducing unfamiliar smells may temporarily disrupt their sense of security.

Even seemingly minor changes can matter to a sensitive cat.

Introducing a New Pet

A new cat or dog may create competition for space, food, water, attention and resting areas.

Introducing animals too quickly can increase tension. Cats should have opportunities to become familiar with one another gradually, with separate resources and safe escape routes.

Read our guide on introducing a new cat to your home for practical steps.

Loud Noises and Unfamiliar Visitors

Thunder, fireworks, construction work, loud music and frequent visitors may frighten some cats.

Cats that cannot retreat to a quiet area may experience greater distress.

Competition Between Household Cats

Conflict between cats is not always obvious. It may involve staring, blocking pathways, guarding food bowls, preventing access to litter boxes or forcing another cat to avoid certain rooms.

A household may appear peaceful even when one cat is consistently intimidated by another.

Lack of Environmental Enrichment

Indoor cats need opportunities to perform normal behaviours such as climbing, scratching, exploring, hiding and playing.

A limited or unpredictable environment may contribute to frustration and stress.

Providing suitable enrichment is important even when a cat lives in a small apartment.

How to Help a Stressed Cat at Home

The most effective approach is to identify the possible trigger and make the cat’s environment safer and more predictable.

1. Provide a Quiet, Safe Space

Choose a quiet area where your cat can rest without constant interruption.

A covered bed, cardboard box or suitable hiding space may help. Make sure the cat can leave freely and is not trapped by children or other pets.

2. Maintain a Predictable Routine

Try to keep feeding, play and cleaning schedules reasonably consistent.

A predictable routine can help reduce uncertainty, particularly after a move or other major household change.

3. Provide Separate Resources in Multi-Cat Homes

Cats may become stressed when they have to compete for essential resources.

Where possible, provide multiple accessible feeding and drinking stations, resting places, scratching surfaces and litter boxes in separate locations.

A commonly used starting point for litter boxes is one per cat plus one extra, although the best arrangement depends on the home and the individual cats.

4. Encourage Play and Mental Stimulation

Offer suitable toys, scratching surfaces, climbing opportunities and supervised interactive play.

Short play sessions can be more manageable than forcing one long session. Let the cat choose whether to participate.

For additional ideas, see our guide to indoor cat enrichment and care in Nigeria.

5. Introduce Changes Gradually

When introducing a new pet, changing food, moving furniture or relocating to a new home, avoid making every change at once.

Allow the cat time to investigate unfamiliar objects and surroundings at its own pace.

6. Avoid Punishment

Shouting, hitting, spraying water or forcibly removing a cat from its hiding place can increase fear.

Punishment does not address the underlying cause of stress and may make the cat less willing to approach people.

Instead, use patience, environmental adjustments and positive interactions.

7. Keep a Record of Behaviour Changes

A simple record can help identify patterns.

Write down:

• When the behaviour started.
• How often it happens.
• Whether appetite or water intake has changed.
• Any changes in urination or defecation.
• Recent household changes.
• Interactions with other pets.
• Any physical symptoms.

Photographs or short videos may also help your veterinarian understand what is happening.

When Should You Take a Stressed Cat to the Veterinarian?

A veterinary examination is important when a cat develops a sudden, persistent or unexplained behaviour change.

Do not assume that hiding, aggression, excessive grooming or litter-box avoidance is purely emotional. Pain and medical conditions can produce similar signs.

Arrange veterinary assessment if your cat:

• Stops eating or has a significant reduction in appetite.
• Loses weight without an obvious explanation.
• Vomits repeatedly or has persistent diarrhoea.
• Develops bald patches, wounds or skin irritation.
• Becomes unusually withdrawn or aggressive.
• Has difficulty moving or appears painful.
• Starts urinating outside the litter box.
• Shows a persistent change in drinking or toileting habits.

Signs That Require Urgent Veterinary Attention

Some symptoms should not wait for a routine appointment.

Seek immediate veterinary care if your cat:

• Repeatedly strains to urinate but produces little or no urine.
• Has difficulty breathing.
• Collapses or becomes severely weak.
• Has seizures.
• May have swallowed a poisonous substance.
• Experiences severe bleeding or a serious injury.

Urinary obstruction is a particular emergency. A cat that cannot pass urine may deteriorate rapidly, and home remedies are not an appropriate substitute for treatment.

How Veterinarians Assess Possible Stress in Cats

A veterinarian will usually begin by asking about the cat’s history and examining its physical condition.

Depending on the symptoms, the assessment may include:

• Questions about when the behaviour started.
• Changes in feeding, drinking and toileting.
• Recent household or environmental changes.
• Physical examination for pain or illness.
• Urine or blood tests where indicated.
• Further investigations based on the suspected condition.

If medical causes are ruled out, the veterinarian may recommend environmental changes, a behaviour-management plan or referral to a qualified veterinary behaviour professional.

Medication may be appropriate in selected cases, but it should only be considered under veterinary supervision. Never give a cat human anti-anxiety medication, sedatives or other drugs without professional direction.

Can Stress Affect a Cat’s Physical Health?

Yes. Stress is not only a behavioural concern.

Prolonged or repeated stress may affect normal eating, grooming, social interaction and other daily activities. It can also contribute to certain health problems.

One important example is feline idiopathic cystitis, a painful bladder condition in which stress may play a role. Affected cats may show frequent attempts to urinate, discomfort and blood in the urine.

This does not mean every stressed cat will develop urinary disease. It does mean that owners should take persistent stress seriously and seek veterinary guidance when physical symptoms appear.

Frequently Asked Questions About Stress in Cats

1. What are the first signs of stress in a cat?

Early signs may include hiding more often, reduced play, changes in appetite, increased alertness, unusual vocalisation or avoiding familiar people. The signs vary between individual cats.

2. Can a cat be stressed without showing obvious signs?

Yes. Some cats display subtle changes, such as eating less, grooming differently, avoiding certain rooms or becoming less interactive. Observing your cat’s normal routine can help you notice these differences.

3. How long does stress last in cats?

A brief stress response may settle once the trigger disappears. Stress associated with an ongoing problem, such as conflict with another pet or an unsuitable environment, may continue until the underlying issue is addressed. Persistent changes should be discussed with a veterinarian.

4. Can changing homes stress a cat?

Yes. Moving introduces unfamiliar smells, sounds, spaces and routines. Prepare a quiet room with familiar bedding, food, water and a litter box, then allow your cat to explore gradually.

5. Can another cat make my cat stressed?

Yes. Competition, intimidation and poor introductions can create tension between household cats. Provide separate resources and safe spaces, and introduce cats gradually rather than forcing them to share an area.

6. Does hiding always mean a cat is stressed?

No. Hiding is normal feline behaviour and can simply be a way to rest or feel secure. It becomes more concerning when it is new, persistent or accompanied by changes in eating, activity, toileting or social behaviour.

7. Can stress cause a cat to stop eating?

Stress may reduce appetite, but illness, pain and dental problems can also cause a cat to eat less. A cat that stops eating or has a significant appetite change needs prompt veterinary advice.

8. Should I punish my cat for urinating outside the litter box?

No. Punishment can increase fear and does not identify the cause. Litter-box avoidance may be related to stress, environmental problems or a medical condition. Arrange veterinary assessment, especially when the behaviour is new.

9. Are calming products safe for stressed cats?

Some products, including pheromone-based products, may help certain cats, but their effects vary. They should not replace investigation of the underlying cause. Ask a veterinarian before using supplements, sedatives or other calming products.

10. When is stress in cats a serious concern?

It is more concerning when behaviour changes persist, worsen or interfere with normal activities such as eating, drinking, toileting and social interaction. Difficulty urinating, breathing problems, collapse or suspected poisoning require urgent veterinary attention.

Final Thoughts

Cats communicate discomfort in many different ways, and not every sign of stress is obvious. A cat that hides more often, stops playing, changes its eating habits or avoids the litter box may be responding to something in its environment.

The best way to help is to observe changes early, identify possible triggers and provide a safe, predictable environment. Give your cat space, maintain a suitable routine and provide opportunities to play, climb, scratch and rest.

Most importantly, do not assume that every behaviour change is caused by stress. Pain and illness can look similar, and a veterinary examination may be necessary to identify the real problem.

With patience, careful observation and appropriate veterinary support, owners can help their cats feel more secure and maintain a better quality of life.

Veterinary disclaimer: This article is for general educational purposes. It does not replace an examination, diagnosis or treatment plan from a registered veterinarian. Seek professional advice when your cat develops sudden, persistent or concerning changes in behaviour or health.

Sources

These sources support the behavioural, environmental and medical guidance in the article.

1. AAHA/AAFP – 2021 Feline Life Stage Guidelines: Explains feline stress and fear signals, including body posture, ears, pupils, vocalisation and activity changes. Read the guidelines. AAHA+1

2. Cornell University College of Veterinary Medicine – Cats That Lick Too Much: Explains excessive grooming, possible stress-related causes and the importance of ruling out medical problems. Read the article. Cornell Vet College

3. Merck Veterinary Manual – Diagnosing Behavior Problems in Cats: Explains why veterinarians investigate medical causes before diagnosing a behaviour problem. Read the guidance. Merck Veterinary Manual

4. Cats Protection – Spotting Signs of Cat Stress: Covers hiding, body language, changes in social behaviour and ways to support stressed cats. Read the guide. Cats Protection

5. PDSA – Preventing Stress in Cats: Covers common behavioural signs, possible triggers and the importance of veterinary advice when behaviour changes. Read the guide. PDSA

6. Cornell University College of Veterinary Medicine – Feline Lower Urinary Tract Disease: Explains urinary symptoms and the relationship between stress and feline idiopathic cystitis. Read the article. Cornell Vet College

7. 2024 AAFP Intercat Tension Guidelines: Provides professional guidance on recognising, preventing and managing tension between cats in the same household. Read the guidelines. catvets.com

8. Journal of Feline Medicine and Surgery – Stress in Owned Cats: Behavioural Changes and Welfare Implications: A peer-reviewed review of common stressors and their effects on feline behaviour and welfare. Read the research. PMC

Reviewed by Dr. Job Mamman