Most pet worries can safely wait for a normal appointment. A handful can't — and knowing which is which, before you're in the middle of it, is one of the most valuable things an owner can carry. This is a calm, memorable list of the red-flag signs in dogs and cats that mean seek veterinary care immediately, day or night. When you see one of these, don't wait, don't watch, and don't reach for a search bar — call your vet or nearest emergency clinic and go.
Keep your emergency vet's number saved in your phone now, before you need it.
Breathing problems — always an emergency
Anything that suggests your pet can't breathe properly is a go-now sign:
- Laboured, heavy or noisy breathing at rest
- Gums or tongue that look blue, grey or very pale
- Stretching the neck out to breathe, or refusing to lie down
- Choking, or open-mouth breathing in a cat (cats almost never breathe open-mouthed unless in real distress)
Collapse, seizures and severe pain
- Collapse, fainting, or sudden weakness and inability to stand
- A seizure that lasts more than a few minutes, or repeated seizures close together
- Signs of severe pain — crying out, a rigid or hunched posture, or aggression when touched in a normally gentle pet
The abdominal emergency: bloat (GDV)
In dogs — especially large, deep-chested breeds — a swollen, hard belly with unproductive retching (trying to vomit but nothing comes up), restlessness and drooling can signal gastric dilatation-volvulus (bloat), where the stomach twists. It is rapidly life-threatening and needs surgery within hours [1]. This is a true race against the clock.
The blocked cat: a male cat who can't urinate
A male cat straining in the litter tray, crying, and producing little or no urine is a medical emergency. A blocked bladder can become fatal within a day or two [2]. Don't wait to "see if he passes it" — this is one of the most time-critical feline emergencies there is.
Bleeding, trauma and toxins
- Uncontrolled bleeding, or any significant trauma (a fall, a road accident) — even if your pet seems okay, internal injury can be hidden
- Known or suspected poisoning — chocolate, xylitol, grapes/raisins, lilies (cats), human medicines, antifreeze, rodent bait (see what to do if your pet eats something toxic)
- Heat stroke — frantic panting, bright red gums, wobbliness, vomiting or collapse in the heat (begin cooling and go; see heat stroke in Dubai's pets)
Other go-now signs
- Repeated, violent vomiting or diarrhoea, especially with blood, or with weakness
- A swollen, painful abdomen
- Sudden loss of use of the back legs (common in cats with a clot; painful and urgent)
- Difficulty giving birth — more than an hour of strong contractions with no puppy or kitten, or a long gap between them
- Eye injuries or a suddenly painful, bulging or cloudy eye — vision can be lost quickly
- Your deep, instinctive sense that something is badly wrong. You know your pet. Trust it.
What to do on the way
Call ahead so the clinic is ready. Keep yourself and your pet calm and warm; handle an injured or painful animal gently, as even gentle pets may bite when frightened or hurt. If poisoning is possible, bring the packaging or a photo. Don't give food, water or any human medicine unless a vet tells you to. Then go.
The bottom line
The signs above share one feature: they can worsen fast, and minutes matter. For everything on this list, the safe answer is the simple one — seek veterinary care immediately. For the many worries that aren't on it, a symptom checker or a next-day appointment is usually right. Knowing the difference in advance is how you stay calm enough to act well when it counts.
Frequently asked questions
When should I take my dog to the emergency vet? Go immediately for: breathing difficulty or blue/pale gums; collapse or a seizure lasting more than a few minutes; a swollen hard belly with unproductive retching (possible bloat); uncontrolled bleeding or major trauma; suspected poisoning; heat stroke; or severe, sudden pain. When in doubt with any of these, call ahead and go.
What are the emergency signs in cats specifically? A male cat straining but unable to urinate (a blocked bladder — life-threatening within a day or two), open-mouth or laboured breathing, sudden paralysis of the back legs, collapse, suspected lily or medicine ingestion, and any severe or worsening illness. Cats hide illness, so a very withdrawn, non-eating cat also warrants urgent attention.
My pet seems 'off' but I'm not sure it's an emergency — what should I do? If none of the red flags above are present, it's reasonable to use a symptom checker or book a prompt appointment and monitor with clear signs to watch for. If any red flag appears, or your instinct says something is badly wrong, treat it as urgent and call your vet.
How do I check my pet's gum colour? Gently lift the lip; healthy gums are bubble-gum pink and moist. Pale, white, blue or brick-red gums are a warning sign of a circulation, oxygen or shock problem and mean seek care immediately.
Be ready with Stay
Stay keeps your pet's key details and your emergency vet's contact in one place, and its symptom checker helps you tell a true emergency from a "monitor at home" — so you act fast when it matters and stay calm when it doesn't. AI assists; experts decide. Join the Stay waitlist.
Important note
This article is decision-support information, not veterinary advice, and does not diagnose your individual pet. If you think your pet may be having an emergency, contact a veterinarian or emergency clinic immediately.
References
- American College of Veterinary Emergency and Critical Care (VECCS). Gastric dilatation-volvulus (bloat). https://veccs.org/
- American Association of Feline Practitioners. Feline lower urinary tract disease and urethral obstruction. https://catvets.com/guidelines/practice-guidelines
- American Veterinary Medical Association. Emergency care and first aid for pets. https://www.avma.org/