7 Cat Emergencies: How to Know What’s Urgent and What to Do

7 Cat Emergencies: How to Know What’s Urgent and What to Do

By
✔ MRCVS
BSc
BVM&S
FHEA
Reviewed by Dr. Jennifer Macindoe
✔ MRCVS
BVMS
Updated April 24, 2026
7 min read

Is this an emergency?

Straining to pass urine

Not eating or hiding

Breathing issues or collapse

Bleeding or accident

Vomiting or diarrhoea

Seizure

Swollen or bloated tummy

Guidance for cat owners

How to contact an emergency vet

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7 Cat Emergencies: How to Know What’s Urgent and What to Do

7 Cat Emergencies: How to Know What’s Urgent and What to Do

By
✔ MRCVS
BSc
BVM&S
FHEA
Reviewed by Dr. Jennifer Macindoe
✔ MRCVS
BVMS
Updated April 24, 2026
7 min read

Emergencies are something nobody wants to face. But they do happen. And there's never a ‘good’ time!

It’s late. You're finally home after a long day. The house is a bit quiet. Your cat’s asleep in their favourite spot. But something doesn’t feel quite right. They haven’t come to demand food. They’re hiding.

You find yourself watching them, waiting, second-guessing everything.

Is this an emergency? Or are you overreacting? Can it wait until morning?

There are some situations you know will be urgent - serious road accidents, broken legs, poisoning. But other times things aren’t so clear-cut. And cats are experts at hiding illness, much better than dogs (and definitely better than humans). Especially the early stages. Which makes these moments even harder. 

This guide looks at the most common emergency concerns in cats, how to recognise them, and when to seek help.

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Is this an emergency?

Always take it seriously if your cat:

  • Stops eating completely for more than 24 hours

  • Isn’t breathing normally

  • Can’t walk 

  • Keeps going to the litter tray but not passing any urine - especially males

  • Has a swollen, tense or painful tummy

  • Has a seizure or collapses

If something feels off, trust your instincts. 

A simple but essential tip: 

  • Make a note of your vet’s contact details, including the address and telephone number for out-of-hours emergencies.

  • Keep these details somewhere easy to find: on your mobile, stored on a landline phone, written down on paper, pinned to the fridge!

  • Share the information with petsitters, family members, the cattery - anyone who may look after your cat.


My cat keeps going to the litter tray but nothing’s coming out

The Red Flags: Find your nearest vet 

  • Your cat is straining to pass urine (pee), but produces little or nothing

  • Vocalising (yowling) when they try to pass urine

  • Has not passed any urine for 24 hours or more

This scenario is especially urgent in male cats. It can quickly lead to organ failure, so contact a vet without delay if your cat’s struggling to pee.

Amber warnings: See a vet the same day

  • Your cat is making frequent trips to the litter tray but still passing urine

  • There’s blood in their urine

Green: Worth getting advice from a vet 

  • There have been some accidents outside the litter tray

  • They’re eating less than normal

Frequent trips to the litter tray with straining and passing small or no urine indicates a severe issue in cats
Frequent trips to the litter tray with straining and passing small or no urine indicates a severe issue in cats

Immediate action

For non-urgent issues, encourage your cat to drink more. Anything you can do to boost fluid intake will help to keep their kidneys working and dilute irritant urine. Switch to wet food, add warm water to their usual diet or provide a water fountain.  

My cat isn’t eating or seems very quiet and is hiding


The Red Flags: Find your nearest vet

  • Your cat hasn’t eaten for 24 hours or more (especially kittens). In cats, this can lead to life-threatening liver problems (hepatic lipidosis).

  • They’re lethargic, very weak, or difficult to wake up

  • Their gums are blue or white

Amber warnings: See a vet the same day

  • Your cat is eating much less than normal

  • Hiding away, not wanting to interact with their people or housemates

  • Much quieter than usual

Green: Worth getting advice from a vet 

  • Your cat’s eating a bit less than usual, but they seem otherwise normal

  • Not grooming themselves

  • They're behaving a bit differently from normal

We shouldn't ignore changes in cats’ behaviour. They’ll often become quieter when they’re unwell. It’s often one of the earliest symptoms of more serious health concerns.

cat lying down

My cat’s having difficulty breathing or they’ve collapsed

The Red Flags: Find your nearest vet

  • They’ve stopped breathing (their chest isn't rising and falling)

  • If your cat is open-mouth breathing or panting - this is never normal in cats!

  • Breathing rapidly, even when they’re asleep or resting

  • Has laboured breathing - you can see the effort or heaving in their chest or abdomen

  • Blue-tinged or white gums 

  • Their paws and ears feel cold

Open-mouth breathing in cats is never normal
Open-mouth breathing in cats is never normal


Amber warnings: See a vet the same day

Green: Worth getting advice from a vet 

  • Your cat’s breathing sounds a bit snuffly

  • They have runny eyes and nose, and occasional sneezing 

Immediate action

Keep your cat calm and keep stress to a minimum. Let them rest in a quiet place and don't try to handle them too much. Breathing problems can get worse very quickly.

My cat is bleeding or has been in an accident

The Red Flags: Find your nearest vet 

Your cat:

  • Is unable to walk or is in severe pain

  • Unconscious or unresponsive

  • Has a deep cut or penetrating wound over their chest or abdomen

  • Is bleeding heavily and it isn’t stopping

  • Is having difficulty breathing 

  • Suffers head trauma, a violent blow or severe eye injury

  • Severe burns, caustic injuries or scalding

Amber warnings: See a vet the same day

  • Your cat’s not taking any weight on one limb (but is otherwise bright and well)

  • Has an open wound, especially over a joint

  • Suffered a fall, road accident, deep cuts, or a dog bite that breaks the skin - even if they seem okay initially

Green: Worth getting advice from a vet

  • Your cat’s limping a little after missing a jump, falling or roaming outdoors

  • Has a minor cut, graze or scratch or a superficial burn

  • Is bitten by another cat 

Immediate action

Keep your cat as quiet and still as possible, ideally in a comfortable carrier bed. Apply gentle pressure with a clean pad to stop bleeding. Keep wounds as clean and dry as possible. Cat bite wounds can be bathed with warm salt water (1 teaspoon salt to 500mls boiled, cooled water).

My cat keeps vomiting or has diarrhoea

The Red Flags: Find your nearest vet

Your cat:

  • Is vomiting repeatedly and not improving

  • Not eating and becoming very lethargic

  • Has large amounts of blood in their vomit and/or diarrhoea

  • Is dehydrated: dry gums and tenting skin when you pinch a fold up

Amber warnings: See a vet the same day

  • Your cat is still being sick after 24 hours of treatment at home

  • Eating less than normal

  • Seems a bit lethargic

Green: Worth getting advice from a vet

  • Your cat is sick from time to time

  • Has mild diarrhoea, but is otherwise well

Cats do vomit from time to time. But the frequency and any other symptoms are key factors to consider. Encourage them to drink to make sure they stay well-hydrated.

My cat’s had a seizure or they're behaving strangely

The Red Flags: Find your nearest vet

Your cat:

  • Is having a seizure that’s gone on for more than 3-4 minutes

  • Any seizures in young kittens

  • Is having repeated seizures, without fully recovering in between them

  • May have swallowed or been exposed to something toxic

  • Has been in a road accident or suffered a head trauma

  • Has severe back or neck pain, can’t use their legs normally or can’t control their bladder

Amber warnings: See a vet the same day

  • This is their first seizure

  • It was a brief episode, and now they’re back to normal

  • They seem jumpy or are staring into space

Green: Worth getting advice from a vet

  • Your older cat’s behaviour is gradually changing (confusion, disturbed sleep-wake cycles) 

  • Your cat is more vocal than usual (yowling), but seems otherwise normal

  • Toileting outside the litter tray

  • Grumpier than usual

Immediate action

If your cat is having a seizure, keep their surroundings quiet and calm and try not to touch them unless you have to. Keep your cat safe from injury during a seizure by clearing surfaces and blocking off stairs or sharp edges. Keep children and other pets away.

My cat has a swollen or bloated tummy

The Red Flags: Find your nearest vet

Your cat:

  • Suddenly develops a bloated tummy that’s painful when touched

  • Is breathing quickly or having difficulty breathing

  • Is very quiet or weak

  • Is not passing urine

Amber warnings: See a vet the same day

Green: Worth getting advice from a vet

  • They’re a kitten with a pot-belly and an uncertain worming history

  • They get slightly bloated after eating

  • Stools are softer than usual

  • You've recently changed their diet

A swollen abdomen often has a simple explanation. But not always. And it’s definitely worth checking.

Guidance for cat owners

Cat emergencies are often less obvious than in dogs, but no less serious. The symptoms may not be dramatic. Often it’s just a feeling that something isn’t right. You know your cat better than anyone. Trust that instinct.

If you're ever unsure, remember it’s always okay and right to ask. Whether you turn to your own vet or a remote veterinary service, getting advice early is never the wrong decision.

Joii vets are available online 24/7. So you can get professional advice and reassurance whenever you need it. Reach out now if you're worried about your cat.

vitamin D toxicity cat hero image

How to contact an emergency vet

Contact an emergency vet by calling your regular veterinary practice (they provide out-of-hours instructions) or searching online for your nearest 24/7 emergency veterinary clinic and calling them directly.

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