The Signs That Mean Ring the Vet Now
Not everything is an emergency — but some things are. Here is how to tell the difference between ring now, call today and book when you can.
What "emergency" actually means at the vet
The word gets used loosely, and that is part of the problem. In the loosest sense, any trip to the vet can feel like an emergency if you are worried about your animal. But practices make a real operational distinction between cases that need a clinician in the next ten minutes, cases that need attention within the same day, and cases that can safely wait for a routine appointment. Knowing which category you are in changes what you do next — and it can, in genuine emergencies, change the outcome for your animal.
The complication is that pets are stoic in ways that work against them. Dogs mask pain; cats mask it even more thoroughly. Rabbits, prey animals by instinct, suppress signs of illness so successfully that by the time they look unwell they are frequently very unwell indeed. Small animals — guinea pigs, hamsters, rats — have high metabolic rates that mean deterioration can be swift. With all of these animals, the difficulty is not that owners fail to notice; it is that the animal makes itself hard to read. The rule of thumb that cuts through the noise is simple: if something has changed sharply, and you cannot explain it, you ring. You do not wait to see if it improves.
That rule applies before any of the specific signs below. It is not a counsel of anxiety; it is a counsel of proportion. Vets and veterinary nurses field calls from pet owners all day, and they would rather take the call that turns out to be nothing than not receive the one that turns out to be something.
| Ring now | Same day | |
|---|---|---|
| What it means | Somebody needs to see the animal in the next few minutes. | Somebody needs to see the animal today, and the practice decides when. |
| Signs listed here | 8 | 6 |
| What you do | Ring first and drive second — the practice will tell you where to go and will be ready. | Phone the practice today and describe it. They decide the timing, not the internet. |
No doses and no home remedies here: anything you give an animal should come from your own vet, for that animal.
The signs that mean ring now — not this afternoon, now
These are the situations where you pick up the phone while someone else is getting the carrier out. Out-of-hours services exist for exactly these presentations, and if your own practice is closed, the right move is to call the emergency line rather than wait for morning.
Difficulty breathing. Any animal that is working to breathe — flaring its nostrils, breathing through its mouth, extending its neck, sitting with elbows pushed out, or whose sides are heaving rapidly at rest — needs to be seen immediately. Cats in respiratory distress sometimes breathe open-mouthed, which is nearly always serious; this is not normal panting. Rabbits are obligate nasal breathers, so mouth breathing in a rabbit is a critical sign.
Collapse or sudden inability to use the legs. An animal that cannot stand, collapses when it tries to walk, or drags its hindquarters needs emergency attention. In cats, sudden hindlimb paralysis — often accompanied by cold, pale or blue back feet and a painful, hard cry — can indicate aortic thromboembolism, a cardiovascular emergency where time is critical.
Seizures. A single seizure that lasts more than five minutes, or more than one seizure in a twenty-four-hour period, warrants an immediate call. A dog or cat that has a brief seizure and then recovers should still be seen the same day, but if the animal is still seizing, do not wait for it to stop before calling.
Suspected poisoning or a known ingested toxin. If you have reason to think your animal has eaten something toxic — certain plants, chocolate, xylitol (the sweetener in some human foods and chewing gum), rodenticide, antifreeze, human medications, grapes or raisins in dogs — ring immediately, even if the animal appears fine. Some poisons have a window during which intervention is effective; that window closes.
Unproductive retching or a bloated, hard abdomen in a dog. A dog that is trying repeatedly to vomit but bringing nothing up, or whose belly is visibly distended and drum-tight, may be developing gastric dilatation-volvulus (GDV), sometimes called bloat. This is a surgical emergency in which the stomach twists on itself. Deep-chested breeds — Great Danes, German Shepherds, Standard Poodles, Irish Setters — have higher incidence, but no breed is exempt, and the presentation can progress from discomfort to life-threatening instability in hours.
Urinary straining with no output, especially in male cats. A male cat that is crouching in the litter tray, crying, and producing nothing — or only drops of bloody urine — may have a blocked urethra. A urinary blockage is fatal if untreated; a cat can deteriorate within twenty-four hours of complete obstruction. This is one of the veterinary presentations where the window between "ring now" and "too late" is genuinely short.
Severe trauma. Road accidents, falls from height, attacks by other animals, or any incident where a significant force has been applied to the body. Animals can sustain internal injuries, fractures or internal bleeding without obvious external wounds. Looking intact is not the same as being intact.
Uncontrolled bleeding. Bleeding that soaks through a cloth in under five minutes, or bleeding from a body cavity, is an emergency. Applying gentle pressure while travelling is reasonable; it is not a substitute for getting there.
Loss of consciousness, extreme weakness, or gums that are white, blue or grey. Healthy gum colour is pink. Pale, white or bluish gums indicate poor circulation or oxygenation. An animal that is profoundly weak, cannot lift its head, or is unresponsive needs to be seen now.
A rabbit that has not eaten or passed droppings for more than a few hours. Rabbits have a gut that must keep moving; gastrointestinal stasis — where the digestive system slows or stops — is a medical emergency in this species, not a wait-and-see situation. A rabbit sitting hunched, with a rounded belly and no interest in food, should prompt an immediate call.
The signs that mean call today — same day, not next week
These presentations are not immediately life-threatening in the way the above list is, but they need professional attention within hours, not days. If your practice cannot fit you in, explain the situation — most will triage by phone and advise accordingly.
Vomiting or diarrhoea that is repeated, severe, or contains blood. Occasional vomiting in an otherwise bright dog is not an emergency; vomiting multiple times in a few hours, or diarrhoea that is watery and bloody, is a same-day call. In small animals and young animals, dehydration happens faster.
Eye injuries or sudden changes to the eye. A cloudy eye, a red or weeping eye, obvious squinting, or any injury to the eye surface needs to be seen the same day. Eyes deteriorate quickly; a condition that is treatable in the morning may be more serious by evening.
Lameness that is sudden and severe, or that involves a limb held completely off the ground. Mild lameness that comes and goes can be monitored briefly; a limb that is non-weight-bearing needs same-day assessment.
Straining to urinate in a female cat or a dog, or blood in the urine. This is not the same as the blocked male cat above, but urinary tract infections and other causes of dysuria should be seen the same day rather than left.
A lump that has appeared suddenly, grown quickly, or become hot or painful to the touch. Most lumps are not immediately dangerous, but rapid change — in size, texture or temperature — warrants prompt attention.
Persistent shaking of the head, scratching at the ear, or an ear that smells strongly. Ear conditions are rarely emergencies, but they are painful, and untreated infections can cause complications. A same-day or next-day call is appropriate.
Any small pet that appears lethargic, is sitting fluffed up, or is not eating. Hamsters, guinea pigs, rats and birds sit at the far end of the stoicism scale; by the time the signs are obvious, the animal has often been unwell for some time. Do not take a "wait and see" approach with a small animal that is clearly off.
The rule underneath all of this
This list is not exhaustive — it cannot be. Animals present in ways that fall between categories, and the correct response to a presentation you are uncertain about is to call and describe what you are seeing. Veterinary reception teams are trained to triage, and every practice has a pathway for urgent calls. You will not be wasting anyone's time.
The single error to avoid is reasoning yourself out of acting. "It's probably nothing," "let's see how she is in the morning," and "I don't want to make a fuss" are thoughts that have preceded bad outcomes. The animals on this list do not show pain the way we do, and they do not tell us when they are frightened. That is the job we take on when we live with them.
When in doubt, you ring.