10 Signs Your Dog Needs a Vet — and Which Can't Wait Until Morning
Most dog parents have stood in the kitchen at 10pm asking the same question: is this a "monitor overnight" thing or a "go now" thing? This guide sorts the ten signs vets most want you to act on — including three that are always emergencies — and what to do while you get to the clinic.
Always an emergency — go now, including overnight
1. A swollen, hard belly with unproductive retching
This is the classic picture of bloat (GDV) — the stomach fills with gas and can twist, cutting off blood supply. Deep-chested breeds are at highest risk. Restlessness, drooling, a tight drum-like abdomen and repeated attempts to vomit that produce nothing: this kills in hours. Go to an emergency vet immediately.
2. Difficulty breathing
Laboured breathing, blue or grey gums, stretched-out neck breathing, or choking. In Singapore's heat, flat-faced breeds (Frenchies, pugs, shih tzus) can tip from noisy breathing into respiratory crisis quickly. No wait-and-see here.
3. Heatstroke signs
Heavy relentless panting, drooling, bright-red gums, wobbliness, vomiting or collapse — often after a midday walk or time in a hot space. Move your dog to shade or air-con, wet the body with room-temperature (not ice-cold) water, and head to a vet even if they seem to recover; internal damage can show up hours later.
Urgent — same day, call ahead
4. Repeated vomiting or diarrhoea, or any blood in either
One vomit in a bright, hungry dog can be monitored. Repeated episodes, blood, black tarry stools, or vomiting with lethargy needs same-day attention — and much sooner in puppies and seniors, who dehydrate fast.
5. Not eating for more than a day, or drinking far more than usual
Appetite is a blunt but honest health signal. A dog that refuses food for 24 hours, or one that suddenly empties the water bowl repeatedly, is telling you something — kidney disease, diabetes and infections all start this way.
6. Lethargy with pale gums
In Singapore this combination should make you think of tick fever — blood parasites like Babesia and Ehrlichia spread by tick bites. Fever, loss of appetite, pale gums and dark urine can follow a tick encounter by days to weeks. It's treatable caught early and dangerous late, so don't sit on it — and keep tick prevention going year-round.
7. Straining to urinate, or crying when trying
Repeated squatting with little or no urine — especially in male dogs — can mean urinary stones or a blockage. A dog that cannot urinate is an emergency: the bladder can rupture and toxins build fast.
Don't wait long — within a day or two
8. A limp that doesn't improve, or crying when touched
A mild limp after rough play can rest for 24–48 hours. A limp that persists, worsens, or comes with a yelp when touched deserves an exam — cruciate tears, slipped discs and joint disease respond far better early.
9. Head-shaking, ear odour or frantic scratching
Ear infections are endemic in humid climates and genuinely painful. They almost never resolve on their own, and days of head-shaking can burst blood vessels in the ear flap — turning one problem into two.
10. A lump that's new, growing or bleeding
Most lumps are benign, but you can't tell by feel. Any new lump deserves a check; one that grows quickly, changes colour or ulcerates deserves a prompt one.
While you're on the way
- Call ahead — the clinic can prepare, or redirect you to a 24-hour facility if it's after hours.
- Don't feed, medicate or induce vomiting unless a vet tells you to — human medications like paracetamol and ibuprofen are toxic to dogs.
- For suspected poisoning, bring the packaging or a photo of what was eaten.
- Keep your dog calm and cool — air-con on, minimal handling for painful or breathless dogs.
- Save your clinic's number in your phone now, plus a 24-hour emergency vet — the worst time to Google one is during an emergency.
Frequently asked questions
What signs are always emergencies?
Breathing difficulty, collapse, bloat signs, seizures, uncontrolled bleeding, inability to urinate, suspected poisoning and heatstroke. Go immediately, day or night.
My dog vomited once but seems fine — vet or not?
Monitor for 12–24 hours if they're otherwise bright and eating. Repeats, blood, lethargy, or a very young or old dog: see a vet promptly.
What is tick fever?
Tick-transmitted blood parasites common in Singapore. Lethargy, fever, pale gums and dark urine are the signs — it's serious, and preventable with year-round tick control.
A note from PawOS
This guide is published by PawOS, the all-in-one operating system for modern pet care businesses. We build the software behind vet clinics, groomers and boarding centres — including AI receptionists that answer pet parents' calls in any language, day or night. If you run a pet care business, see what PawOS can do.