Lou, my own 12-year-old beagle mix, has arthritis that I manage daily. A few months ago he started eating less — just a bit, maybe 20% less than usual. He was still moving around, still interested in walks. I told myself it was probably a low-energy day, maybe a stomach thing.
On day three I listened to myself the way I'd listen to a client: this is not normal for him, and unexplained appetite change in a senior dog warrants a look. Bloodwork showed early dental disease significant enough to be causing pain when he chewed. Treatable. But I'd waited two days longer than I should have because I didn't want to be the anxious owner.
Nobody does. But the cost of waiting when something is genuinely urgent is almost always higher than the cost of coming in unnecessarily. The problem is that most people — including veterinarians with their own pets — don't have a clear framework in the moment. What follows is the one I use when clients call to describe what's happening.
Immediate Emergency: Go Now, Don't Wait
These situations require emergency veterinary care. Do not wait for morning. Do not observe for a few hours. If your regular practice is closed, go to an emergency facility.
Breathing difficulty. Open-mouth breathing in a cat is always an emergency — cats don't normally pant, and doing so indicates significant respiratory distress. In dogs, laboured breathing, blue or grey gums, or breathing with pronounced abdominal effort is equally urgent.
Collapse or profound weakness. A pet that suddenly cannot stand, or that collapses and cannot get up, may be in cardiovascular shock, experiencing internal bleeding, or having a severe neurological event.
Suspected poisoning. If you know or suspect your pet has ingested a toxin — medications, plants, cleaning products, pest baits, certain foods — call your vet or a poison control line immediately. The window for effective decontamination is often very short.
Uncontrolled bleeding. Deep wounds, bleeding that doesn't stop with firm pressure after five minutes, or significant blood loss require immediate intervention.
Seizures. A single brief seizure in a dog with no prior history is serious but not always immediately life-threatening. However, a seizure lasting more than two to three minutes, or multiple seizures within a short period, is a neurological emergency.
Inability to urinate, especially in male cats. A blocked bladder is a life-threatening emergency in cats. Signs include straining in the litter box with little or no output, crying out, or hiding and seeming distressed. Male cats are significantly more vulnerable to urethral obstruction than females.
Suspected gastric dilatation-volvulus (GDV) in dogs. Large and deep-chested breeds — Great Danes, German Shepherds, Standard Poodles, Irish Setters — are at risk for GDV, where the stomach fills with gas and twists. Signs include a distended abdomen, unproductive retching, and restlessness after eating. This is fatal without immediate surgery.
Eye injuries. A penetrating eye injury, chemical exposure to the eye, or a prolapsed eye (pushed forward from the socket) needs emergency evaluation within minutes to hours to preserve vision.
Suspected broken limb or spinal injury. Non-weight-bearing acute lameness after trauma, or a pet dragging its hindlimbs, warrants immediate assessment.
Urgent: Same Day or Within 24 Hours
These situations may not be immediately life-threatening but should not be left until the next available routine appointment.
Vomiting or diarrhoea lasting more than 24 hours. Occasional single vomiting episodes in otherwise well animals often resolve without intervention. Persistent or frequent vomiting, especially with lethargy or refusal to eat, needs evaluation within the day. Bloody diarrhoea (haemorrhagic gastroenteritis) should be seen the same day.
Sudden lameness without trauma. A dog that suddenly starts limping without an obvious injury may have joint disease, a disc issue, or a soft tissue injury that needs examination.
Significant change in drinking or urination. Dramatic increases or decreases in water intake, or changes in urination frequency, can signal kidney disease, diabetes, liver disease, or Addison's disease — all of which benefit from prompt assessment.
Eye redness, squinting, or discharge with discomfort. Corneal ulceration, uveitis, and glaucoma can all progress quickly. A pet squinting and pawing at one eye needs same-day assessment.
Straining to defecate. While constipation is common and often benign, severe straining — especially if accompanied by lethargy, not eating, or a tense abdomen — warrants evaluation for obstruction.
Suspected ear infection with significant pain. Shaking of the head, scratching at one ear, and crying out when the ear is touched suggest a painful infection that should be assessed and treated promptly.
Any acute distress in a small mammal, bird, or exotic pet. Small animals and birds often mask illness until they're critically ill. Any visible sign of distress in these species — fluffed feathers and lethargy in a bird, difficulty breathing in a rabbit — should be treated urgently.
Routine: Schedule Within the Week
These situations warrant veterinary evaluation but are unlikely to deteriorate rapidly if an appointment takes a few days to arrange.
- Gradual weight loss or gain over weeks
- Mild, intermittent lameness that's been present for more than a week
- Gradual increase in water intake that's been developing over several weeks
- Lumps or bumps that have been present and stable for some time
- Mild skin irritation or itching without acute distress
- Behavioural changes that have developed gradually
- Dental concerns (bad breath, reluctance to eat hard food)
- Annual vaccines or parasite prevention due for renewal
The distinction between "same day" and "within the week" is that same-day situations involve acute change or real distress, whereas routine situations involve gradual developments that are concerning but not rapidly changing.
A Framework for Deciding
When you're unsure, run through these questions:
- Is my pet in visible distress — vocalising, unable to rest, obviously struggling? If yes, call your vet or emergency line now.
- Has the problem developed suddenly, within the last 24-48 hours? Acute change generally warrants same-day evaluation.
- Is my pet eating, drinking, and moving around as usual? Normal appetite and mobility are reassuring signs. Lethargy and inappetence alongside other symptoms raise urgency.
- Is this one of the "immediately emergency" scenarios listed above? If yes, don't wait.
When in doubt, call. Most veterinary practices have a triage phone line or can give guidance without requiring a visit. A five-minute call may save you a long emergency night — or get you there in time when it matters.
Understanding the broader context of preventive care for pets helps you know when to act proactively rather than reactively. It's also worth familiarising yourself with pet health warning signs — the subtle signals that precede most serious conditions — so you recognise them before they escalate. And for detailed guidance on true crises, knowing how to respond to pet emergencies before you need it is time well spent.
Frequently Asked Questions
What should I do if I can't afford emergency vet care right now?
This is a genuinely difficult situation that many owners face. Call the emergency clinic and explain your circumstances honestly — many practices have payment plan options, and some areas have veterinary assistance funds or charity organisations. Some clinics will also advise over the phone on whether a situation is truly emergent or can wait until regular hours. Never let financial concern stop you from calling to ask.
How do I tell if my pet is in pain if they're not crying out?
Animals rarely vocalise pain the way humans do — it's actually an uncommon pain signal in most species. Signs of pain include: reluctance to move or be touched, changes in posture (hunching, reluctance to put weight on a limb), changes in facial expression (furrowed brow, tense jaw in dogs; squinting or flat ears in cats), restlessness or inability to settle, reduced grooming (cats), or reduced appetite. A pet that is quieter, stiller, and less engaged than usual may well be in pain.
My pet seems unwell but the emergency vet is very far away. What should I do while travelling?
Keep your pet as calm and still as possible. Use a carrier or a seatbelt harness to prevent them moving around the car. Call ahead so the clinic can prepare for your arrival. If there's bleeding, apply firm, gentle pressure with a clean cloth. Don't offer food or water if surgery may be required. And drive safely — adding an accident to an already stressful situation helps nobody.